This'll probably only be fixed when Apple fixes it -- hopefully in the coming-soon 26.1 update. See this thread for similar examples of Music's AppleScript (and, by extension, KM) support getting broken.
This'll probably only be fixed when Apple fixes it -- hopefully in the coming-soon 26.1 update. See this thread for similar examples of Music's AppleScript (and, by extension, KM) support getting broken.