https://gist.github.com/Sunconure11/ea453b372c61bed2b9c27b6ff704c21a

Tried to replicate with the modpack, but had trouble using the modpack. From the logs above, it seems like somehow, lots of blockstates are failing to load.

Biggest offender seems to be bricklayer. Will test tomorrow without it

Bricklayer is not the cause.