Why when I click "Search and Select..." it tries to load, but never loads?

Hi Amy, it might be helpful to see what request was sent to the server in Browser Network tab and the response returned - that could give a clue. Usually, for search and select, the request url will be something like:  /rest/v11_8/RelatedModule?erased_fields=true&view=selection-list&fields=...&max_num=10