Reposting this here as well as I wrote the original on the Bewitchment Issues page

Running just Bewitchment and Age of Exile together and fabric api/their dependencies (pictured) I can replicate a bug where I fly out in creative mode and terrain will stop generating suddenly, usually cutting off in a uniform line. Block updates stop as well - placing water will place it on a block but it won't spread. Exiting out of the game once this happens doesn't work normally and I have to kill process through multimc. Sometimes I'm unable to finish world generation as well and it will freeze up somewhere between 90-100%.

Minecraft 1.16.5
MultiMC Launcher 0.6.11-1430
Fabric Loader 0.11.2

Log for freeze while generating world:
https://pastebin.com/j0xQ9CZe

This world was working until I exited the world and rejoined, then I got the same kind of chunk error where they stopped loading in a line.
https://pastebin.com/5y5pC8Me

this one was a straightforward freeze once I'd flown about 1k blocks out:
https://pastebin.com/J9YctVXV

Might need to test a little more but I think this might be fixed using the latest AoE and Bewitchment files

Tested some more and as far as I can tell the issue is resolved!