[1.12.2] OptiFine causes crash when rendering .obj in TESR

[Codasylph]

I have two TESRs in my mod where I use an IBakedModel to render a .obj.  In both cases I do this because the model isn't static, in one case the .obj is several gears which rotate and in the other it is fluid which is only rendered when there is actually an item containing fluid in the TE. Apparently OptiFine does not like this, and when Minecraft attempts to render these with OptiFine installed it produces an IndexOutOfBoundsException and crashes. My question is, what can I do about this?  My current plan is to put in some code that checks if OptiFine is loaded and do something else if it is (like rendering an item model instead of an .obj for the gears, and rendering a cube for the fluid, which won't be as pretty but also won't crash!) but I thought before using what I consider to be an imperfect solution I'd ask on here if there is just some other more OptiFine friendly way of rendering the a .obj in a TESR.  For reference here is the crash report: https://paste.dimdev.org/isomagozof.cs and here is the code for one of the TESRs: https://paste.dimdev.org/fejagorose.java

[Cadiboo]

This isn’t a Forge problem. Go to the OptiFine issues https://github.com/sp614x/optifine/issues