Weird, I can run Carpet and WorldEdit mod without crash but when I add Library of Exile to mods then mc crashes.
Running Library of Exile with WorldEdit without Carpet doesn't crash.

crash report - https://hatebin.com/balwmiqfud

RobertSkalko/Library-of-Exile#1

Seems like the causer may be CardinalComponent's Chunk API, not "Library of Exile" itself (may be a better place to report, but check if that's the case first), but I'm not sure. It seems to prevent Carpet from finding the method it's trying to mix into.

well, just recently WE added some initial support for non-updatable setblocks, mixing into the same place with redirect - that will not end well.

True, it has actually been confirmed there.

Well, then this relates to EngineHub/WorldEdit#1605, which is "scheduled" to be fixed in WE 7.2.2.

this is another reason why we r making WorldEdit for scarpet. It's WIP, but idrc, it works.

ok, this is fixed on WE's side, we can close her too now.

Note that the WE version which fixed this hasn't been released yet.

k, you can close now @RDKRACZ