I installed the beta, just to get a quick look at the Sorcerer class, and all my quick saves/auto saves were gone from the game. The saved games files themselves are still on the disk. I zipped them and uploaded them to a publicly accessible link on Drive:
I don't know why the game isn't seeing them. I also tried opting out of the beta, which re-downloaded the original game, but still no visible saved games in the game itself.