It is not just the fault on Re-Logic, it could be the Steam server's fault for not being able to store them properly. Anyway, since the files are stored pretty obviously in Documents, you could take it upon yourself to copy them and manually back them up in a safer folder in case you are concerned about their security.I'm sorry but considering your cloud save feature has been broken for 5 YEARS!!!!!!!!!! 5 YEARS!?!?!?! (how?) This is literally a pointless update, what is the point of trying to attain this new inventory space only to have it disappear at random when your save decides to stop being recognized. This is the most pathetic development team.