First off, big thanks for this mod! It's awesome!
I found a bug regarding the mod not saving userdata like levels and exp.
If your world name contains a colon, the mod throws an error in the background and doesn't save the data. Maybe true for other symbols, didn't test it.
Guess this should be easy to fix^^
In the meantime I simply changed my worlds name and it works fantastic.
So if anyone else has the same problem, check your world name.