Appaloosa Plains loading bug

[aAa]

When I try loading AP, the loading bar stops when it is very close to the end and does not load the world. I would be grateful to anyone who can help.
I am using a Mac. (not Air, not Pro)
I have all EPs except Generations, plus Hidden Springs, Lunar Lakes and Sunlit Tides. I have some store content too.

[Pam]

I'm moving this to the Technical Help board.