Have you found a fix to this?
Happens to me on IOS about 2 days ago and haven’t found a solution yet. I was in the nether and exited out while still in the nether and now my world gets stuck on the generating world screen.
Update: I have found out that this bug happens in the nether. When you try to exit out of Minecraft while still in the nether, the world gets stuck on the generating world screen.
Same
This also happens to me. Hopefully they can fix this massive issue.
This happened to me too when I updated my game to update 1.12, except I was on iOS.Hopefully mojang listens and fixes this in the next update soon.
I have this same problem except mine stays on the generating world screen
Same thing happened to me when I went to the nether then exited out of Minecraft while still in the nether. Now my world always gets stuck on the generating world screen