So recently as many of you know Direwolf released his 1.5 beta pack and I seem to have a problem loading my old world from 1.4.7 in 1.5. The problem is this, when I try to play on my world it freezes on the "Loading world Building terrain" screen and in the console it says "The state engine was in incorrect state ERRORED and forced in state AVAILABLE. Errors may have been discarded". Any help would be appreciated, thanks.