Im having the same problem with my S&T 2013, I can setup a trip and save it than when I plug in the antenna it won't work. I tried several things and even reinstalled the S&T from the CD and no change.
I also did some checking on the S&T site and everyone running windows 10 is having the same problem, so it looks like Microsoft has left us out and I don't think they will do anything about it.
( some more of your hard earned money gone down the drain )
I was thinking ( LOL ) could you partition your hard drive and install windows 7 or 8 to just run S&T ? I have a ACER netbook laptop just to use on trips to run S&T and for getting info using WiFi
