Problems loading single player world for the first time

[Polybius Again]

I'm creating a custom modpack and have found ways through most of the problems I've been having but this one has me stumped. The game freezes just before loading chunks and all I can comprehend from the log is that maybe there are too many events happening on first log in? The only way to interact while frozen is to close the game manually. Here's the most of the last part of the log because the whole thing is too big for pastebin. Will post more pastebins if needed
Latest: https://pastebin.com/e11RPSKX

Edit: Realized I forgot the debug log, here are the error parts because again, it's too big for pastebin: https://pastebin.com/RKag1GFc

Edited May 19, 2023 by Polybius Again

[warjort]

Quote

java.lang.IllegalStateException: Should always be able to create a chunk!

-- snip --

at TRANSFORMER/[email protected]/com.alc.moreminecarts.entities.ChunkLoaderCartEntity.<init>(ChunkLoaderCartEntity.java:37)