After installing Vray 6.02 for Rhino I fould this error !!
I have uninstalled Vray but the problem still persists, it could happen because of Speckle?
Hi @user992 try to follow the steps indicated in this tip: Installation issue "Unable to load VisualARQ.rhp plug-in" - VisualARQ
Let me know if that solves the problem.
Both of them are already enabled and it was working well till this week @fsalla
Edit
I have restarted my Laptop and it works like a charm now after uninstalling Vray
I’m glad you made it work. Having Vray installed or not should not affect this issue. So you should be able to install Vray back and use it with VisualARQ.