Dual audio notifications for texts

[martain]

I recently started noticing that I was receiving two audio notifications for incoming texts, on my non-rooted S4. I will receive one notification tone, but no text. about 15 seconds later I receive a second notification, and the text will arrive. This seems to have started after the recent update. The stock messaging app is the only one I have installed. The only other app I have installed, which deals with sounds is "Sound Profile", which I have been using for quite some time, without any problem.

Any one else have this problem, or have any suggestions?

Thanks in advance for any assistance.