If all else fails, consider reinstalling the game. This will ensure you have a clean installation of Shadow of the Tomb Raider.
Right-click on SOTTR.exe or the game’s shortcut → Properties → Compatibility → Check “Run this program as an administrator” → Apply → OK. shadow of the tomb raider failed to load profile
Lack of admin privileges can prevent the game from reading the profile files stored in protected user directories. If all else fails, consider reinstalling the game
This resolves 80% of synchronization errors by forcing a fresh handshake between the client and Steam. If all else fails