Our Service Desk "Ticket Form" and our "Agent View" have always used the same custom fields. See the below image as an example of fields these screens shared.

All of a sudden, our users are reporting they no longer have access to any of the fields previously available.
When I investigate, I found that all the fields previously available are now showing as ONLY Issue View.

I have moved them back to the Agent View. But some are still showing as "Hidden".

None of us (that we're aware) have done any changes to these fields or the agent form. The only work I myself have done is on the Workflow and all I did was add a status for "won't do".
Help!!
Thank you.