Abilene Harper

cwhite
The constraint network uses the 'name' point attribute to identify which packed primitive to attach the constraint to (see the Attributes section of http://www.sidefx.com/docs/houdini13.0/nodes/dop/constraintnetwork).

Between the two RBD Packed Objects you have some duplicate names for packed primitives (i.e. 'piece0' to 'piece149'), which causes some glue bonds to be attached to pieces from the wrong object. An easy fix is to change the 'Name Prefix' parameter on one of the Voronoi Fracture nodes so that each packed primitive in the simulation has a unique name.

François Gressier
Don't know why but, but the following works for me :
- Create a new dopnet.
- Past all nodes from the old dopnet into the new one.
- Delete the old AutoDopNetwork.
- Rename the new dopnet as the old one "AutoDopNetwork" to relink everything.