[Music Lover]

I am using a Lenovo Android tablet and my issue is exactly what Geoff indicated.  I tested it on my android phone and it does the same thing.  When I press Exit the App closed so you think it's closed but then if you try and see what Apps are opened on the tablet/phone, Mobile Sheet is still showing up as running.  I have to used Android's close app method, ie. swipe the App window off the screen to close it properly.