Tmodloader / Terraria , clicking Singleplayer / Multiplayer crashes game

Whenever i try to join Singleplayer or Multiplayer the game crashes with the error : "System.IO.IOException: The cloud operation is invalid."
Checking file integrity on Steam says "1 file failed to validate and will be reacquired", but i have no way to "reacquire" and it doesn't actually fix it.

Michaelsoftman•9/21/25, 5:44 PM

You need to start OneDrive, your files are on the cloud and TML can't access them

PopaDinBisericaOP•9/21/25, 6:01 PM

i did, didnt work, i then deactivated cloud for terraria and TML and still the same error

PopaDinBisericaOP•9/21/25, 6:01 PM

i tried reinstalling the game as well

PopaDinBisericaOP•9/21/25, 6:02 PM

also in the clinet.log it says something about achievements.dat

PopaDinBisericaOP•9/21/25, 6:02 PM

The cloud operation is invalid. : 'C:\Users...\OneDrive\Documents\My Games\Terraria\tModLoader\achievements.dat'

PopaDinBisericaOP•9/21/25, 6:11 PM

when i go into the TML folder where the achievements.dat file is, i can't open it and it says the cloud operation is invalid. I get that this is a cloud issue but i've disabled OneDrive and it still won't work

PopaDinBisericaOP•9/21/25, 6:12 PM

also if it helps, i connected to onedrive with another account because my last google account got hacked so i had to switch

tModLoader•9/21/25, 7:13 PM

Tag: onedriveissue
Looks like you are having issues with OneDrive. First, try signing into OneDrive. If that doesn't fix the issue, follow the guide in the tModLoader FAQ to either disable OneDrive or to set up OneDrive correctly to work with the Documents folder. https://github.com/tModLoader/tModLoader/wiki/Basic-tModLoader-Usage-FAQ#windows-10-onedrive (Click the

to expand the sections.)

Michaelsoftman•9/21/25, 7:15 PM

You have to sync everything from onedrive to your PC first

Michaelsoftman•9/21/25, 7:15 PM

Uninstalling onedrive is more complex, but if you did that already you probably have to reinstall Terraria / TML so everything is set locally from this point on

Tmodloader / Terraria , clicking Singleplayer / Multiplayer crashes game

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