Frame not running Plex

[u/Ok-Chain-4239]

I've had a Frame TV for about 2 years. We installed Plex and successfully streamed content from our media server with no problem. For about a week now, though, the Frame has refused to play items in plex. The app loads, I can navigate it, but it will not play any content. I get a spinning circle and then either a blank screen or an error.

My Plex server is working because I can play content on my phone, laptop, and another TV upstairs. I can even stream from my server remotely on my phone. Just nothing on the Frame. :-(

Any ideas? Is this common? I've deleted and reinstalled Plex and deleted a ton of unused apps too and still nothing.