I am on Metabase Cloud (Pro).
I have a dashboard with filters. All reports are out-of-the-box questions (no SQL).
The filters were working great. I recently made a couple of changes to Questions on the dashboard and now no longer have the ability to see all but one of the the fields available to filter when I go to update this in my dashboard.
I have reviewed some of the other questions that still work fine and I can not find anything that would make these questions not filterable.
I have gone into the summarize area of the questions in question and I see the fields I want available so I am a bit perplexed. I also had spent some time in the admin data model, so it is possible i did something there. but again, i would think that would break the filters across all of the questions that is part of the dashboard if that was the case.