I am surprised this issue has not come up in any forum post, at least ones if have found...
In Maya 2014, I have noticed a couple really troubling issues with nhair,
1. When simulating multiple hair systems under the same nucleus solver, all but one of them lag a frame behind during playback in the viewport. Once cached it looks fine when played back, but still annoying bug.
2. Caching nhair in batch mode does not seem to respect transforms correctly. Meaning if i move the transform of the surface the follicles are bound to, the cached hair position if off by one frame.
Has anyone experienced these issues? Is there a workaround?
I solved this problem by reconnecting all the follicles to one hair system. I can make a python script if anyone still has this problem.