I don’t think this can be fixed, but I wanted to document it here. Game started being quite riddled with rubber banding while playing tonight. Decided to close the app and reopen in hopes of fixing it. Game froze on trying to exit to desktop. Had to force quit.
When I fired it back up, my character had lost hours of progression. All the MATs I used were gone, my gear was all 2 levels back and I had lost a rune ability I had slotted into my weapon previously
Playing on Steam Deck, if that matters.