I have recently updated visualARQ v2.12 and updated RIR v1.9.8217 daily build.
visualARQ v2.12 works well in standalone rhino7, however i cannot load it in the current RIR daily build.
Hi @park, do you have VRay installed by chance? Have you tried this workaround? VisualArq / Rhino.Inside Revit problem
(It should actually be fixed in latest VRay versions). Let me know how it goes!