Any models that get put above the height limit instantly disappear. It happens for any vertices, as long as the entity is above 256 (including debug stuff like hitboxes).

https://streamable.com/e/a1ef8w

This should be fixed in 3d4c6d0

https://github.com/grondag/canvas/blob/3d4c6d07dcecd84e9b503ca8e777ecbce5617464/src/main/java/grondag/canvas/render/frustum/RegionCullingFrustum.java#L51-L57

This is :mojank: afaik

It doesn't happen in vanilla, so it's defo caused by canvas