Scattered Forest Pack objects often lose their materials when rendering with IPR

[Alex_M]

Hi. This has been a huge pain in the rear for me for a long time. Quite often when I use IPR and change stuff in my scene, move things around etc, scattered Forest Pack objects start losing their materials and become black or white. This happens on all PCs here. I once reported this to Itoo and they said that it's an issue with V-Ray and they can't fix it on their side. This heavily slows down lookdev since I constantly have to stop and start IPR. Is there anything that can be done about this?

[Philip Shounev]

Hello,

this doesn't seem reproducible in a newly created scene on my end. Could you send a scene sample where this can be observed to philip.shounev@chaos.com so we can locate the culprit ?