wpsnoop: fix Challenger theme conflicts, errors & issues

When the theme Challenger conflicts or throws a PHP error we hope wpsnoop can help you to fix the issue quickly.


Discover which shortcodes wp-options PHP functions database tables and files are created by Challenger, plus learn which plugins and/or themes could be in conflict with Challenger.


Troubleshooting theme and plugin conflicts is easier when you know what Challenger leaves behind after uninstalling it from a WordPress installation, there is a list down below for your convenience.

Expert advice is recommended if you are not technically proficient with PHP, MySQL etc. View support options for Challenger

Get professional support for Challenger here

When you need professional help with WordPress: get help here


What does Challenger version 1.15 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for Challenger to perform differently in your installation, previous versions before 1.15 may have created a different set of shortcodes, used different function names or could have created entirely different database tables to store settings and operate. This is not an exhaustive list but shows how version 1.15 of Challenger behaves when installed and removed on a clean installation of WordPress.

We have not tested individual shortcodes, features or settings of this theme but instead have concentrated on the potential for obvious errors and conflicts which can occur, if you need help with the plugin in your local installation you can get WordPress help and support for Challenger by clicking here.

Our testing covered the free version of this theme there may or may not be a paid version or premium version available for purchase that unlocks additional features and could behave in a slightly or very different manner.

Which new files does Challenger add to WordPress?

This section will populate with a table showing an icon, size and filepath.

Type & Path Size Conflicts
wp-content/themes/challenger/ 4.70MB No known conflicts with other themes or plugins.
wp-content/themes/challenger/404.php 593.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/ 4.03MB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/ 3.07MB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/ 337.98kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/all.css 70.97kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/all.min.css 57.21kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/brands.css 732.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/brands.min.css 675.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/fontawesome.css 69.37kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/fontawesome.min.css 55.81kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/regular.css 734.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/regular.min.css 677.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/solid.css 727.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/solid.min.css 669.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/svg-with-js.css 7.89kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/svg-with-js.min.css 6.21kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/v4-shims.css 40.34kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/css/v4-shims.min.css 26.08kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/ 2.74MB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-brands-400.eot 129.92kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-brands-400.svg 699.11kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-brands-400.ttf 129.62kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-brands-400.woff 87.72kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-brands-400.woff2 74.82kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-regular-400.eot 33.58kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-regular-400.svg 140.94kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-regular-400.ttf 33.29kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-regular-400.woff 16.41kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-regular-400.woff2 13.27kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-solid-900.eot 198.15kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-solid-900.svg 876.39kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-solid-900.ttf 197.87kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-solid-900.woff 100.88kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/font-awesome/webfonts/fa-solid-900.woff2 77.58kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/ 0.96MB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/bg-texture.png 958.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/challenger-pro.gif 116.88kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/featured-videos.png 36.39kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/font-sizes.png 32.99kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/fonts.png 35.32kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/footer-text.png 18.90kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/header.jpg 639.24kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/layouts.png 35.68kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/reviews.png 3.59kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/sticky-header.png 33.08kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/assets/img/widget-areas.png 29.72kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/comments.php 1.75kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/content-archive.php 547.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/content-attachment.php 353.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/content-page.php 660.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/content.php 1.07kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/content/ 5.79kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/content/archive-header.php 1.45kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/content/author-box.php 588.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/content/bbpress.php 204.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/content/header-box.php 1.15kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/content/post-byline.php 1.19kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/content/post-categories.php 751.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/content/post-tags.php 504.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/dnh/ 14.86kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/dnh/assets/ 431.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/dnh/assets/js/ 431.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/dnh/assets/js/main.js 431.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/dnh/handler.php 12.47kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/dnh/includes/ 1.97kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/dnh/includes/helper-functions.php 1.97kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/footer.php 1.19kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/functions.php 44.71kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/header.php 2.17kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/inc/ 49.87kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/inc/customizer.php 31.47kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/inc/last-updated-meta-box.php 1.93kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/inc/review.php 8.62kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/inc/scripts.php 4.28kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/inc/user-profile.php 3.56kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/index.php 347.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/ 39.69kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/customizer.js 2.49kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/fitvids.js 3.57kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/functions.js 9.17kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/postMessage.js 3.64kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/prod/ 20.82kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/prod/customizer.min.js 1.50kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/prod/front-end.js 12.74kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/prod/front-end.min.js 4.77kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/js/prod/postMessage.min.js 1.81kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/languages/ 12.33kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/languages/challenger.pot 12.33kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/license.txt 1.02kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/logo.php 645.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/menu-primary.php 509.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/package-lock.json 143.26kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/readme.txt 1.51kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/rtl.css 40.61kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/rtl.min.css 31.36kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/screenshot.png 182.83kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/search.php 784.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/sidebar-after-page.php 358.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/sidebar-after-post.php 358.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/sidebar-before-page.php 363.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/sidebar-before-post.php 363.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/style.css 40.60kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/style.min.css 31.35kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/styles/ 18.91kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/styles/admin.css 4.57kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/styles/admin.min.css 3.87kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/styles/customizer.css 795.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/styles/customizer.min.css 518.00B No known conflicts with other themes or plugins.
wp-content/themes/challenger/styles/editor-style.css 3.75kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/styles/editor.css 3.17kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/styles/editor.min.css 2.27kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/templates/ 1.04kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/templates/full-width.php 1.04kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/theme-options.php 7.51kB No known conflicts with other themes or plugins.
wp-content/themes/challenger/woocommerce.php 134.00B No known conflicts with other themes or plugins.

Which new shortcodes does Challenger add to WordPress?

Which new database tables are created by the WordPress theme Challenger?

Which new options are added to the wp-options table by Challenger?

Option Name   Known Conflicts
current_theme Potential conflict with 8753 plugins or themes
theme_mods_twentytwentytwo Potential conflict with 8767 plugins or themes
theme_switched Potential conflict with 8753 plugins or themes
theme_mods_challenger The theme_mods_challenger option doesn't have any known conflicts with other themes or plugins.
wrm_a8bbe32bd51616805a00 The wrm_a8bbe32bd51616805a00 option doesn't have any known conflicts with other themes or plugins.

During use Challenger may or may not create more options depending on how the theme is configured and depending on which other themes and plugins are active in your specific hosting environment.

What new PHP functions does Challenger declare when it is active?

Function   Conflicts Common Errors
dnh 19 conflicts Fatal error: Cannot redeclare dnh()
dnh_is_dismissed 19 conflicts Fatal error: Cannot redeclare dnh_is_dismissed()
dnh_register_notice 19 conflicts Fatal error: Cannot redeclare dnh_register_notice()
dnh_restore_notice 19 conflicts Fatal error: Cannot redeclare dnh_restore_notice()
ct_challenger_add_author_social_profiles 0 conflicts Fatal error: Cannot redeclare ct_challenger_add_author_social_profiles()
ct_challenger_add_customizer_content 0 conflicts Fatal error: Cannot redeclare ct_challenger_add_customizer_content()
ct_challenger_add_editor_styles 0 conflicts Fatal error: Cannot redeclare ct_challenger_add_editor_styles()
ct_challenger_add_meta_tags 0 conflicts Fatal error: Cannot redeclare ct_challenger_add_meta_tags()
ct_challenger_add_read_more_link 0 conflicts Fatal error: Cannot redeclare ct_challenger_add_read_more_link()
ct_challenger_allow_skype_protocol 0 conflicts Fatal error: Cannot redeclare ct_challenger_allow_skype_protocol()
ct_challenger_body_class 0 conflicts Fatal error: Cannot redeclare ct_challenger_body_class()
ct_challenger_body_class_extras 0 conflicts Fatal error: Cannot redeclare ct_challenger_body_class_extras()
ct_challenger_custom_excerpt_length 0 conflicts Fatal error: Cannot redeclare ct_challenger_custom_excerpt_length()
ct_challenger_customize_comments 0 conflicts Fatal error: Cannot redeclare ct_challenger_customize_comments()
ct_challenger_customize_preview_js 0 conflicts Fatal error: Cannot redeclare ct_challenger_customize_preview_js()
ct_challenger_delete_settings_notice 0 conflicts Fatal error: Cannot redeclare ct_challenger_delete_settings_notice()
ct_challenger_enqueue_admin_styles 0 conflicts Fatal error: Cannot redeclare ct_challenger_enqueue_admin_styles()
ct_challenger_enqueue_customizer_post_message_scripts 0 conflicts Fatal error: Cannot redeclare ct_challenger_enqueue_customizer_post_message_scripts()
ct_challenger_enqueue_customizer_scripts 0 conflicts Fatal error: Cannot redeclare ct_challenger_enqueue_customizer_scripts()
ct_challenger_enqueue_scripts_styles 0 conflicts Fatal error: Cannot redeclare ct_challenger_enqueue_scripts_styles()
ct_challenger_excerpt 0 conflicts Fatal error: Cannot redeclare ct_challenger_excerpt()
ct_challenger_featured_image 0 conflicts Fatal error: Cannot redeclare ct_challenger_featured_image()
ct_challenger_filter_custom_excerpts 0 conflicts Fatal error: Cannot redeclare ct_challenger_filter_custom_excerpts()
ct_challenger_get_content_template 0 conflicts Fatal error: Cannot redeclare ct_challenger_get_content_template()
ct_challenger_get_template 0 conflicts Fatal error: Cannot redeclare ct_challenger_get_template()
ct_challenger_header_box_output_rules 0 conflicts Fatal error: Cannot redeclare ct_challenger_header_box_output_rules()
ct_challenger_infinite_scroll_render 0 conflicts Fatal error: Cannot redeclare ct_challenger_infinite_scroll_render()
ct_challenger_last_updated_callback 0 conflicts Fatal error: Cannot redeclare ct_challenger_last_updated_callback()
ct_challenger_last_updated_meta_box 0 conflicts Fatal error: Cannot redeclare ct_challenger_last_updated_meta_box()
ct_challenger_last_updated_save_data 0 conflicts Fatal error: Cannot redeclare ct_challenger_last_updated_save_data()
ct_challenger_logo_refresh 0 conflicts Fatal error: Cannot redeclare ct_challenger_logo_refresh()
ct_challenger_modify_archive_descriptions 0 conflicts Fatal error: Cannot redeclare ct_challenger_modify_archive_descriptions()
ct_challenger_modify_archive_titles 0 conflicts Fatal error: Cannot redeclare ct_challenger_modify_archive_titles()
ct_challenger_options_content 0 conflicts Fatal error: Cannot redeclare ct_challenger_options_content()
ct_challenger_output_fi_styles 0 conflicts Fatal error: Cannot redeclare ct_challenger_output_fi_styles()
ct_challenger_output_header_styles 0 conflicts Fatal error: Cannot redeclare ct_challenger_output_header_styles()
ct_challenger_output_last_updated_date 0 conflicts Fatal error: Cannot redeclare ct_challenger_output_last_updated_date()
ct_challenger_output_social_icons 0 conflicts Fatal error: Cannot redeclare ct_challenger_output_social_icons()
ct_challenger_output_widget_area_after_page_content 0 conflicts Fatal error: Cannot redeclare ct_challenger_output_widget_area_after_page_content()
ct_challenger_output_widget_area_after_post_content 0 conflicts Fatal error: Cannot redeclare ct_challenger_output_widget_area_after_post_content()
ct_challenger_output_widget_area_before_page_content 0 conflicts Fatal error: Cannot redeclare ct_challenger_output_widget_area_before_page_content()
ct_challenger_output_widget_area_before_post_content 0 conflicts Fatal error: Cannot redeclare ct_challenger_output_widget_area_before_post_content()
ct_challenger_pagination 0 conflicts Fatal error: Cannot redeclare ct_challenger_pagination()
ct_challenger_post_class 0 conflicts Fatal error: Cannot redeclare ct_challenger_post_class()
ct_challenger_register_elementor_locations 0 conflicts Fatal error: Cannot redeclare ct_challenger_register_elementor_locations()
ct_challenger_register_theme_page 0 conflicts Fatal error: Cannot redeclare ct_challenger_register_theme_page()
ct_challenger_register_widget_areas 0 conflicts Fatal error: Cannot redeclare ct_challenger_register_widget_areas()
ct_challenger_remove_comments_notes_after 0 conflicts Fatal error: Cannot redeclare ct_challenger_remove_comments_notes_after()
ct_challenger_remove_more_link_scroll 0 conflicts Fatal error: Cannot redeclare ct_challenger_remove_more_link_scroll()
ct_challenger_reset_customizer_options 0 conflicts Fatal error: Cannot redeclare ct_challenger_reset_customizer_options()
ct_challenger_sanitize_css 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_css()
ct_challenger_sanitize_email 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_email()
ct_challenger_sanitize_fi_size_type 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_fi_size_type()
ct_challenger_sanitize_header_box_display 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_header_box_display()
ct_challenger_sanitize_header_box_overlay_opacity 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_header_box_overlay_opacity()
ct_challenger_sanitize_phone 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_phone()
ct_challenger_sanitize_skype 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_skype()
ct_challenger_sanitize_text 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_text()
ct_challenger_sanitize_yes_no_settings 0 conflicts Fatal error: Cannot redeclare ct_challenger_sanitize_yes_no_settings()
ct_challenger_save_social_profiles 0 conflicts Fatal error: Cannot redeclare ct_challenger_save_social_profiles()
ct_challenger_set_content_width 0 conflicts Fatal error: Cannot redeclare ct_challenger_set_content_width()
ct_challenger_social_array 0 conflicts Fatal error: Cannot redeclare ct_challenger_social_array()
ct_challenger_social_icon_labels 0 conflicts Fatal error: Cannot redeclare ct_challenger_social_icon_labels()
ct_challenger_social_icons_output 0 conflicts Fatal error: Cannot redeclare ct_challenger_social_icons_output()
ct_challenger_sticky_post_label 0 conflicts Fatal error: Cannot redeclare ct_challenger_sticky_post_label()
ct_challenger_svg_output 0 conflicts Fatal error: Cannot redeclare ct_challenger_svg_output()
ct_challenger_svgs 0 conflicts Fatal error: Cannot redeclare ct_challenger_svgs()
ct_challenger_theme_setup 0 conflicts Fatal error: Cannot redeclare ct_challenger_theme_setup()
ct_challenger_wp_page_menu 0 conflicts Fatal error: Cannot redeclare ct_challenger_wp_page_menu()

Using Challenger from the command line with WP-CLI

The following commands are provided for convenience and should only be used if you understand how WP-CLI works. These commands refer to a single WordPress instance and may need to be modified if you are working with a Multisite installation.


How to install Challenger from the command line with WP-CLI

Navigate to the root of your WordPress installation and type the following command:

wp theme install challenger


How to activate Challenger from the command line with WP-CLI

To immediately activate Challenger after WP-CLI downloads the latest version you can use the following command:

wp theme install challenger --activate


How to reinstall Challenger from the command line with WP-CLI

To force a reinstallation of Challenger which overwrites the current plugin without asking for confirmation you can use the following command:

wp theme install challenger --force


How to update Challenger to the latest version from the command line with WP-CLI

wp theme update challenger


How to delete Challenger from the command line with WP-CLI

wp theme delete challenger --force

Where can you download earlier versions of Challenger?

Whenever possible you should use the latest version of plugins and themes, however if you have recently updated and discovered that you need to install an earlier version you may be able to download other versions of Challenger from the WordPress repository by visiting this link.

Please note that installing earlier versions of a theme or plugin is not generally a recommended course of action for most users and could re-introduce security, stability or other issues in Challenger

About our testing enviroment

Tests were conducted using Apache 2.4.29, PHP 7.2 on Ubuntu 18.04, MySQL 5.7.33 and WordPress 5.9

It is very possible that different versions of PHP such as PHP 8.0, PHP 7.4, or PHP 7.3 could behave differently with Challenger. Different versions of WordPress could implement the features of this plugin in slightly different ways as well.