path constraint causing long "transforming vertices"

Hi, I’m working on a walkthrough animation using nurbs curves as camera paths. I’ve noticed the “transforming vertices stage” is taking quite a while so I’ve stripped the scene down to a couple of walls, camera and nurbs path and still I’m getting almost a minute transforming vertices.
As soon as I delete the path constraint or the start/end keys involved with this it will render instantly.

Any one come across this before?

thanks,
Justin

I tried to recreate your issue, but I failed.
Please send your scene along with all assets used in, for an investigation to support@chaosgroup.com.
We will also need information on the version of 3ds Max you are using and the version of V-Ray.

Hi Hristo, Email with example scene sent.
Thanks for your time,

Its look like a bug and I added it into our bug-tracking system, it’s reference code is: VMAX-7325

Ok thanks Hristo. I have emailed you too regarding this,