Stoke sometimes hangs when running sim after sim

Trying to get a file where I can replicate this. It happens every few sims where Stoke will start the first frame but not get anywhere. It will max one core only and just stay like that until I restart max. I’m opening this thread to make you aware of it while I work on trying to get you a file and/or reproducible steps.

Not found reproducible steps yet but I’ve noticed that if I turn off “Preview every nth” it never happens and it doesn’t seem to be a coincidence. To be clear though, it happens when I start the sim, not when it reaches the frame where it’s meant to display progress in the viewport.

Is this with Stoke Particle Sim or Stoke Field Sim? (I assume the former).
How many CPUs/cores do you have?

Stoke Particle Sim, i3930k (6 core, 12 virtual), Max 2014 x64 (Windows 7).