breadcrumb is not displayed on Taxonomy Attached content

after debugging, it appears the issue lies with Drupal 10, likely starting from the 9.5.x version of Drupal core. In the menu_tree table, the route_param_key value has changed. It is now formatted as "taxonomy_term=some_id&display_id=page_1&view_id=taxonomy_term", whereas previously it was simply "taxonomy_term=some_id". so the loadLinksByRoute no longuer return results.

This patch adds the missing route params .

Thanks. That view and page ID come from core/modules/taxonomy/config/optional/views.view.taxonomy_term.yml - it's a good default but I wonder if it should be hardcoded there.

Could we please make this a merge request?

Thanks for the patch! I believe this will be fixed in 🐛 Wrong breadcrumb due to route alterations RTBC . Let's continue there :)