Undeletable FireTV Recast recording entry throwing error 1500 trying to delete, update, or change priority.

I have a broken FireTV Recast recording entry for "ABC World News Tonight with David Muir" that will not record the show, and I can't delete it. I can't change any of my recording's priorities. I can't remove the broken entry. If I go into the recording priorities interface it's still there, and I can pull up the recording options but it does not give "Keep at most" "Recording Preference" or "Image Quality" options like the normal recording entries. If I chose "Cancel Recording" it simply errors with a code 1500 like all the other attempts to modify the recording entry in any way.

I have even tried factory resetting my Recast and de-registering and re-registering it. The recording entry came back as soon as I re-registered it to my account.

I suspect the solution will be to just flush all my recording entries and start fresh but I can't figure out a way to do that. Does anyone have any ideas?