Uninstalled V-Ray 3.6 and installed V-Ray 5.2 - renders are always black

[steve_dredge]

As the title - I think it is related to the 3.6 uninstall as on a clean machine with 3ds Max 2020 (the Max version in question) 5.2 is working fine and it works on the machine with the issue in 3ds Max 2022. One machine is nVidia the other AMD but again I don't think this the issue as 5.2 works in Max 2022 on both machines - looks like we have a second machine with this issue now as well - also previously had 3.6 installed. Has anybody else encountered this problem? Is there a deep clean removal method for 3.6? I went through removing all the leftover file locations after uninstall and also cleaned up and reinstalled the Microsoft Visual C++ redistributables - no change.Thanks

[^Lele^]

Did you use the 3.6 installer, or the 5.x one, to uninstall 3.6?

[steve_dredge]

Hi - I used the 3.6 uninstaller then installed 5.2 afterwards...

[^Lele^]

So, if you uninstalled 5, and reinstalled 3.6, things work?
To answer your initial question, there isn't anything to "deep clean" as the uninstaller takes care of it all (reg keys, ini files, and so on).