Well, here's the deal:

The figure is Apollo Max. I have 3 hair groups on the head: one for the front part of the hair, one for mid, one for back. That makes it easier to style the hairs. Groups don't overlap.

I can work with my hairs, then I can render, and I can style them... no problems. But when I save my scene and load it again, the front and mid hair groups bugs out. Some hair strands fly all over the scene if I "Show Populated" or render the scene. The back group never bugs out. I see no difference between the 3 hair groups other that the back group was created last.

Not sure whats happening.