Reported by someone in my curse pm's:

Haven't tested it myself, but I can imagine that there's some incompatibility in the render code somewhere.

Yeah, we're not fixing that. There are just some mods out there that you simply can't add support for, no matter what.

Yeah that's what I thought too. I still wonder what could cause this though, is it completely unfixable like the water layer stuff or is it just hard and not worth the effort?

Honestly, both.