Tested on 1.16.5
it seems forge multipart works perfectly fine since chisel and bits is working
project red gates and wire however are not rendering

ProjectRed gate not rendering, chisel and bits working in same frame

Button and Torch occupying same block space not rendering

seems i got unlucky the torch is not running its fire animation but i assure you it is there to the right of that button
the torch fire animation does render.

there ware other mods present notably flywheel xnet quark ftbChunks(and other ftb mods). and about 70 less relevant ones