physx collision won't stop

[jasond240]

No problem. See below using tyflow v0.16077.
 

I also noticed that the particles are going through the box as well for some reason. Its set to hull type > mesh.

I checked a similar example from this forum called Ice_cubes.max and the jittering happens in that file as well long after the birth and collisions stop. If you scrub the timeline way past when it should end, you can see it still calculating the tyflow.

Thanks a ton for looking at this!!