Operating system and graphics card
Windows 10 64bit, nividia 760, 16 gm ram. amd 8 core proceccor.
Broken: version 2.78 Hash: 827dc70f
Worked: the current version, 2.78c Hash: e92f235283
Short description of error
the dynamic of hair not worked when i played the timeline.
Exact steps for others to reproduce the error
partickle hair not simulating dynamic. i play the timeline, but the hair standing static. i enabled the dynamic,