I get crash when I try to display blocks and items from ProjectRed. I got the first one when I clicked on the creative tab of project red lighting parts, the second with the creative tab of project red mechanical, and the third when I tried to display the project red items and blocks on JEI. It doesn't come from my memory, I allocate 16Gb for my modpack, and I have 32Gb of memory.
http://pastebin.com/aDw76zny
http://pastebin.com/kxXcK1D6
http://pastebin.com/D1ZwAnT9

I would imagine the standard question applies whenever one encounters a rendering issue: does it continue to happen without Optifine?

Yeah.. try this without optifine.. either way can you open an issue referencing this over at http://github.com/TheCBProject/CodeChickenLib
Title of the issue over at ccl should be: BakingVertexBuffer crash with optifine.

Please attempt the issue again with this version of CCL, http://chickenbones.net/maven/codechicken/CodeChickenLib/1.10.2-2.5.2.213/

I confirm the problem happens only when Optifine is present.

Yay it works now thanks. ^w^

Roger, new build of ccl will be on curse some time soon, next day or so.

I think the new version provocated another bug, now all blocks when broke have purple missing texture particles.