Reproduction steps:
Get into a space with air.
Issue /isorender area ~ ~ ~ ~ ~ ~ or select a box full of air only.
It will crash.
hs_err_pid11558.log
Error that appears before it seg faults.
[14:47:25] [Render thread/INFO]: OpenGL debug message: id=1, source=API, type=ERROR, severity=HIGH, message='GL_INVALID_OPERATION in glBufferData(no buffer bound)'

What version of the mod, what version of Minecraft, what version of the dependencies... Basically what I'm saying is please include your log

Oh. ok.
2022-07-25-4.log

Thanks for reporting this, it's now fixed in version 0.3.2+1.18
Cheers