Fedor Koleganov

Why start another thread for the same issue?
https://www.sidefx.com/forum/topic/102268/ [www.sidefx.com]

At least post some screenshots for the graph/parameters if a scene file isn't possible.

An example file would be helpful. But possible issues are usually topology related and could be:
- Using collision geometry with changing topology, but without correct "v" attribute.
- Attach constraints bound to geometry of changing topology.
- Pin constraints encountering a mismatch between simulation geometry topology and pin target topology.

Those sort of things.

Vellum Welds that attach points together aren't true constraint primitives, it's just a bunch of attributes on the Vellum Geometry, so break threshold should be modified on the Geometry data, not ConstraintGeometry.