ure_show_posts_which_can_edit_only_backend filter allows to change default behaviour for posts/pages/custom post type edit restrictions applied to user.

When “Prohibit” model is selected: all posts/pages are shown except prohibited.
When you select “Allow”, all posts which user can not edit are excluded by default. If you wish to show to a user all allowed posts, except prohibited use this filter and return false value with it:

add_filter('ure_show_posts_which_can_edit_only_backend', function() { return false; } );