I have a really weird issue with GSX and the PMDG Boeing 747-400M that I don't think I ever had in the past. With the main cargo loader, the loader itself will drive to the door and start unloading, but the baggage tractor won't move. The end result is the below pictured situation where the cargo containers are stuck on the loader. I experimented around and set it as a cargo aircraft just for giggles. If I do that, only then will the baggage tractor move. Of course, if I do it that way, GSX thinks it's a cargo aircraft, so the passenger boarding sounds don't play. Any ideas?