Opening Hypershade when VRay loaded crashes Maya

[stezza]

Dont know why this has hit us today when all was fine yesterday.

We cant open the Hypershade without crashing Maya when VRay is loaded.

Tried all new Maya prefs and re installed vray latest release vray_adv_35202_maya2017_x64

Everything else seems to work fine just cant open the hypershade to get to the materials.
Log attached

Any ideas?

[stezza]

OK we could open it on a mac no problem, so deleted materials and saved it out from the mac and this seemed to fix it back on the PC.

[Mihail.Djurev]

Could you by any chance send us a scene that reproduces the issue? I suppose there's some material/shader combination that causes the crash, but I can't really tell from just looking at the log.