Was this profile used in the Multiplayer Mod. Version 0.1.8.1 of the Mod had corrupted the saves of that specific profile used within the mod. This probably had an effect on the transition of the save game when it jumped from Version 1.10.19 to Version 1.11 of the actual game. If you want you can go back to the 1.10.19 update by choosing that branch in the beta settings for the game on steam (if you are using steam). If the save game works on 1.10.19 and it does not work on 1.11 then a mod must not be working! A map mod can also be the Cause!