Hello,
I'm having a similar or probably the same issue here, just wanted to add it to this thread.
I am using vray 3.0 and Ornatrix version 2.8 on max 2014
I also tried a few things and these are some of the issues i am facing:
1 - I have the setup created with a skin wrap, wrapping the hair mesh strands onto a deforming mesh object.
2 - On any "single frame" render, the frame renders correctly , however anything to do with a custom range or a sequence render the hair does not follow the mesh and tends to float away somehow.
3 - I cached hair the hair and turned off skinwrap, but the issue remained.
Unfortunately this is coming in mid a small project :) you think there is a way around this somehow before it is fixed in the next build? I tried installing the latest beta build version 3 of Ornatrix hoping to resolve the issue but that crashed max on the scene startup, so i reverted back to 2.8 fiddling with the scene hoping to resolve it somehow just to be able to render it out.
Thank you.