Drupal.FieldGroup is undefined when using Media Library modal

Ive been doing some more testing and it seems this happens on entity edit pages that do not use field groups. The same issue, but without a relevant error message from Field group, so it would seem this error is not related to this module and rather the Media Library

Yes we have the same problem. I think maybe there is a think in Drupal 10.2.2 but cant verify it at the moment.

Before you are open any media library modal Drupal.FieldGroup and Drupal.behaviors.fieldGroup are defined.
After executing any filter oder pagination the JavaScript error occurs in the browser console and the Drupal-Objects are cleared and set undefined.

The error occurs only with Drupal 10.2.x.
Its not media library related only. Its happen also with entity_browser.
I think its more a modal/ajax related bug.

Agree that stuck overlay is not exclusive Field Group problem. Thrown errors, however, do not appear to be related to stuck overlay -- I get errors whether I get stuck overlay or not.

Noting stuck overlay problem has Drupal core issue opened here: https://www.drupal.org/project/drupal/issues/3415636 🐛 Media Library modale window covered by black overlay after using pager or search Active

Stuck overlay issue has core patch here: https://www.drupal.org/project/drupal/issues/3399951 🐛 ajax_page_state leaks through request in Views Ajax Needs work And it appears to also fix JS errors.

Thank you everyone for the responses, fix mentioned in #6 work for me too.

Automatically closed - issue fixed for 2 weeks with no activity.