I cant stream even when i change the hotkeys or the max videoresolution, max bitrate or the FPS rate. Using an pre Quality like high, medium, low doent help either. This issue seems to be a problem because of the catalyst update to 15.7. I hope that it gets fixed soon.
I went ahead and responded to your ticket (#14901). We can continue the issue there. I'll lock this topic so that the answers for questions are not split from each other. Thanks!