USB PnP relies not just on the USB source, but also the device using it - so what is true for the USB port (hot plugging, no problem) turns out to be less than 100% correct when you use it to plug in a device.
I've encountered problems with soundboards (not sound cards, but external things like mixing desks, mood controllers, synths and amps) as well as ordinary hardware like sticks and yokes. It also can be triggered by turning on a powered hub that was running in passive mode. It can be anightmare troubelshotoing these things, but with FS it is at least easy touse FSUIPC and zero/zero settings like replacing the .cfg file to remove the software from the equation! :lol: