Hi there.
Me and a friend are playing on a server. He placed a block of Chiseled Stone (Poison Variant) from Chisel and it made us crash everytime we are loading this block.

Here the crash-log : https://pastebin.com/Wnsuxqfb

Here the block :
https://i.imgur.com/46OFtR2.png
(I replaced him by a redstone_block using /setblock command from the console)

Placing a Chiseled Stone (Poison) again makes crash again.

Edit : Got another crash by placing another kind of chiseled stone. So the Chiseled Stone (Poison Variant) is not the problem, I guess.

I tried disabled CTM in the config file, but no change. (So mby it's a Chisel bug, idk)

What are those high-resolution lumps of red?

They are Rhodochrosite from NuclearCraft, placed using DraconicEvolution's control "Place Item In World" :þ

Update: it looks like it's the Encased Bricks variant that makes crash. Placing some in the empty space next to the Redstone Block killed us again

does it still crash if you remove the rhodochrosite?

...
I removed those things, placed the floor
I placed again the rhodothing at the bottom of the wall, and I crashed.

I don't get it. At least we have a clue.

I think CTM is trying to get information about the Draconic Evolution placed item, and DE is returning invalid information for some reason.

DE bug, they return null from getBoundingBox which is invalid. This would crash in vanilla too...