After using V-Ray 3.4 for a few weeks, and generally being happy with it, appears the plugin is holding-up Rhino opening.
Typically when opening Rhino, including loading several other plugins, load time is about 20 seconds.
Now it shows V-Ray plugin loading on the splash screen for almost 2 minutes before opening.
Turn the plugin off in the plugin manager and all returns to normal. Back on again, same issue.
Also appears to be causing problems with the toolbar layout.
Any ideas as to what may be causing this?