If you are talking about the steam_profiles(1.XX.XX).bak, these files does not contain the profile files, there are only configuration files. The main steam cloud profile files are located at C:\program files(86x)\steam\userdata\*random number\227300\remote\profiles, and there are not any backup files. The files from steam_profiles(1.XX.XX).bak are useless if you don't have a backup from the other files at the steam folder.
Yes, that's exactly what I'm trying to advise to other players; Keep an independent and local backup of your profiles every time you enter a beta, specially an Experimental one, and don't trust the backups made by steam cloud, as they are useless.x_Lioness_x wrote: ↑11 Jun 2021 18:32 @sga0617 I do know I had this 2x with 2 different official updates so not with EOB or OB, that my profiles boom gone after the update and same error in the logs back then. I always bakcup my profiles for and after play on different locations so i managed to get them back without problems.
I did ask once about it but no one ever was able to explain what and how it happens, so just kept making backups for and after just in case