If you want to run multiple save/load on the same slot you have to wait for the one currently running to cleanup itself**.
It’s a mistake on my side to let the callback “Finished” to fire before that slot is actually fully clean after save.
I will see if I can make that work better.
- (unless you run the save in main thread, instead of as a background task on slot asset settings)
In case of background task (default), use “Get Thread Safety” to check if the background thread has actually finished its work before starting a new process on the same slot.