I set up a field maps project several years ago and it was working great until a month or so ago. The information is linked from our Portal to AGOL and then used in field maps to collect field data. The process worked fine until recently we had a complaint that when using Android devices the options would no longer show up in a certain field after the point or polygon was created. So when trying to edit an existing feature or copying attributes, the domain list is no longer generating. There are other domains/combo box fields in the form and they work fine, but suddenly this specific one stopped working. After lots of republishing and troubleshooting, it looks like it has something to do with the forms. When the field isn't added to a form and just collected in the raw it works fine. When added to a form, with formatting or no formatting, it no longer works properly. If I make the options radio buttons it also works, but I don't want to have 50 radio buttons instead of a dropdown.
It works perfectly fine on an IOS device still. And this all worked great on any device up until sometime in the last month or two.
I have attached the options when not added to the forms and when added to the forms.