It seems worse that this it is more than just Redlight district, Fat Channel too, though I have been able to load Analog Delay. So I am not sure. I think 5.1 may need to have the preferences rebuilt but cannot find them on my Mac, in the Library/preferences and preference panes folders. This is a serious change from previous. May have to go back until I hear more on this. I am on a Mac in 10.13.6