I re-installed BoI Repentance on a new computer and downloaded cloud saves. In the folder "D:\Documents\My Games\Binding of Isaac Repentance (Galaxy)", I renamed the lasted backups to:

persistentgamedata1.dat
persistentgamedata2.dat
persistentgamedata3.dat

However, when I load the game no data is there.

I used to play with two mods. One is external item descriptions and the other gives you an extra starting item and a trinket (to make the game a bit easier).

Could this be the issue or am I doing something wrong?

Anyone willing to share a vanilla save file to try my luck with? Repentance game version 1.0.1.0.

did you make it work by any chance? i ran into the same issue, i have my saves on a pendrive, also the game is loading saves from cloud by itself, but ingame i don't see my saves, i even installed back my mods but nothing changed