MemberPress
When using the MemberPress plugin, you may run into disappearing posts or no results at all after using facets.
This issue is caused by MemberPress filtering out protected posts from WP_Query, if accessed through the WP REST API. FacetWP uses the WP REST API to retrieve posts with AJAX, when filtering.
MemberPress introduced this feature in version 1.12.0 (released on March 25, 2025), so the issue will only happen after updating to or installing that version or later. At the time of writing, there is no setting to disable this feature (like in the Members plugin, which uses the exact same function.).
To fix the issue for logged-in users only, make sure to pass user authentication data through REST API requests.
To fix this issue for all users (logged-in and logged-out), you can unhook the used function programmatically, only when the WP REST API is used by FacetWP for filtering:
How to use custom PHP code?
PHP code can be added to your (child) theme's functions.php file. Alternatively, you can use the Custom Hooks add-on, or a code snippets plugin. More info
add_action( 'wp_loaded', function() { if ( function_exists( 'FWP' ) && true === FWP()->request->is_refresh ) { remove_filter('posts_results', 'MeprRulesCtrl::filter_protected_posts_for_rest', 10); } });
Note that if you are using MemberPress together with the Members plugin, make sure to also apply the fixes for similar issues caused by Members.