I downloaded an add-on for adobe muse. I could not add it via library panel. In creative cloud I tried to mark 'sync files' on, but for some reason that I don't understand it jumps allways back to 'sync files off'. So I tried to add the add-on with extension manager. Here I get the message: see screenshot. I wonder also why adobe muse is not in the product list of extension manager?
thanks for help
