[2023] Level 65 offline character deleted

I bought this game about 2 weeks ago and have been really enjoying it so far. I’ve been playing it exclusively on my Steam Deck using offline characters so I could play on my breaks at work without tethering my phone. I made a Paladin, got to level 65, and decided to respec into a Hammer/Smite build. I was having some minor graphical issues (characters on the home screen when creating a new character were just outlines, sometimes the image for runes/shards were blank, things like that) so I decided to try using a different Proton version to see if that fixed it. After changing to Proton GE-53 the game needed to run a ~5 GB update for some reason, and the graphical issues were fixed but my Paladin is completely gone. I tried switching Proton back to what I was using before (another 5 GB update) and it’s still showing that I don’t have any offline characters.
12 hours of gameplay down the drain is pretty frustrating to say the least. I’ve read of people having issues with rollbacks or characters being deleted when you make a new one but this wasn’t either of those. I understand that the game is early access but this is pretty ridiculous.

Is there anything I can do to try to recover this character? Any help would be greatly appreciated.