If the engine detects that the save originated on a different operating system (e.g., moving from Windows to Android) or even just a different user directory, it flags the file. This is a safety feature designed to prevent:

If possible, try loading the save file on the original device or platform where it was created. This can help you determine if the issue is device-specific.

Variables like "seen dialogue" or "unlocked CGs" are stored separately from individual saves.

The “different device” error is a deliberate anti-cheat and compatibility lock in Ren’Py. While it protects save integrity, it frustrates players who legitimately transfer saves. The only reliable solutions are:

, the message "This save was created on a different device" is a triggered when the game detects that a save file's digital signature doesn't match the current environment . This usually happens if you move saves between computers or manually edit the save data. How to Fix the Prompt