before you copy everything, try to do an alias instead and copy that into the other runtime folder. With material folder it helped in my (Mac) version of Vue. So that i dont have to have everything twice - for Pro and 4.2. But it caused crashes when i did aliases of individual files - only folders wored for me. Another problem i bumped into was, when i named my folders with specific characters. Characters that my OS allowes but Vue does not recognizes. I think I don't think so, that this is the problem in your case (the message you have posted does not show a strange character as far as i can see), i only want to tell this so that you can check it as well. Walther

One day your ship comes in - but you're at the airport.