Installing Cyclops and Integrated Dynamics alongside Embeddium or Sodium on 1.21 causes a particle rendering crash.

https://mclo.gs/01itE0d

Please report this to their issue tracker, given that they significantly change the internals of vanilla.

I've looked into it, and the bug does indeed seem to be on CC's side. It passes entirely null data when using a buffer builder wrapper, instead of the original builder's data.

Thanks for looking into this @IMS212! The wrapper was indeed a hack that seemed to work fine in vanilla, but now appears to show its limitations.
I'll look into your PR soon!