so many crashes with VRay + FP combo in IPR

[Jiri.Matys]

Hi,

I am using 3ds max 2023 with latest VRay and Forest Pack. But when I use IPR and modifying material of FP object in slate while IPR is running, I got close whole max without any warning after some material modification. So I cant use IPR because dont know if crash after second or fifth modify. Really terrible, can this be solved somehow please?

Thank you.

[Joelaff]

I had some weird crashing issue with FP where I had to duplicate (copy) my FP.. Then things worked if I hid the original version. However, if I deleted the original FP the crashes would come back. Maybe try duplicating your FP and keeping the copy but hiding it.

[s_gru]

i've had crashes with IPR and Forest for a long time now. v8.0.6 in forest pack right now and can't upgrade to anything newer b/c my license got switched. i just installed vray 61004. not sure if that helped me? anyway the problem happens with me when adjusting anything even other materials not assigned to FP. or starting/stopping IPR several times in a row. my only solution so far is to turn off the FP objects do IPR for other adjustment then be ultra careful with adjustments in any FP objects, then crash anyway.

[Joelaff]

That was what I ran into when I found that copying the FP object and turning off the original fixed it, so long as I didn’t delete the original.