Same problem, 950XL ,It works but only on the first text in from that person after that it goes silent. I also get no notifications on lock screen or start screen.
Email notifications does not sound but do appear on lock screen and start screen. I am getting an update tonight, hoping that might solve problem.
No other issues, groove has worked very well, battery consumption not awesome but as good if not better than the 1520. I need to get a new sim from work to use the second sim but it looks easy enough to use.
I really like this phone but I need to fix this issue, Uncertain if I just don't have it set up correctly or if it is a software issue. Any suggestions would be appreciated.