Can't restrict visability of CPT to "Hidden To Others"

[leichtgemerkt]

I created a CPT
args = array( "label" => "Calendar", "labels" => array( "name" => "Calendars", [...] ), "description" => "", "public" => true, "show_ui" => true, "show_in_rest" => true, "rest_base" => "", "has_archive" => false, "show_in_menu" => true, "exclude_from_search" => false, "capability_type" => "post", "map_meta_cap" => true, "hierarchical" => false, "rewrite" => array( "slug" => "calendar", "with_front" => true ), "query_var" => true, ); register_post_type("ibsr_calendar", $args);

When I try to hide the content from other users it is still listing all entries in the backend. Edit and Delete restriction works but I can't hide the entries.