Trouble with 1.0.11a Only new worlds will work, previous worlds crash.

[Vanillaraccoon]

Hello, I have recently updated to 1.0.11a(Yes, I know this is in beta) and I am having trouble with loading a private world I have, while any new world I make will not crash or have any problems.  My original-private world was working fine after moving up to 1.0.11a for maybe 3-4 days, but now when I click on it to load, it will say the usual loading world message, and then turn to "shutting down internal server." message.  If anyone has suggestions to fix this, or know anything in relation to this please leave a comment.  Once again, I know this is in beta, but hopefully this minor problem will be resolved soon.

 

[Munaus]

we have a pinned thread where it says >" Let's Test B-Team 1.0.11a!". That's where this belongs.

 

Also, post logs or it didn't happen.