Howdy,

There are no dynamics in this scene but if I add a OX Dynamics mod I can see the default in the scene has to hight a Wisp Size. If you bring that down to 1 or .75 I think you'll have better luck simulating. If that is not your issue, please post your scene with a set of simple steps to reproduce what issue your having. ie:

1. Open the scene

2. Press simulate

3. Hair flies off into space

PS Always avoid using a Turbosmooth below hair in the stack. It can invalidate the stack by changing the topology unexpectedly.

Thanks

Michael