Thanks for providing a simulation, Prometech, that's a good way of checking in on these issues. I'm having trouble, however, spotting any frozen fragments. I've loaded the sim a couple times on different machines and haven't seen them. It's certainly possible they are there and I just haven't spotted them. Or they don't appear when reloading the sim. When you load your simulation again, are they still frozen?
If they are, it would be extra helpful to give the frozen fragments a special name so I can find them and see if they're also frozen for me. If you'd like to upload a new sim with these names, that would be very helpful!
Edit:
I actually saw the same issue just now, so no need to share another simulation. We'll continue to look into this. Thanks for reporting!