Cannot load existing world in beta 1.18.30.20. The screen gets stuck on “Generating World” with “Building Terrain” displayed, the loading bar is stuck a little past halfway. I have restarted Minecraft multiple times and it gets stuck in this spot every time. The FPS and Memory seem to update just fine but the background is frozen. The first time I loaded up the world in the new update it worked fine, but after turning my Xbox off I cannot load my world.
UPDATE
It finally loaded but took a ridiculously long time to do so.
SECOND UPDATE
Taking a very long time to save the world as well.
Forward-resolving this ticket as a duplicate of your newer ticket (MCPE-152893) as it contains more information.