I was watching a presentation on the bluejeans website and noted that when I lock my screen Edge is missing the information about the media playing on the lock screen.
I don't know how it's supposed to work, but I guess it should display some kind of media information or at least the Tab title.
Thanks @cbomtempo. I filed a bug on this (I can reproduce as well) on my end.
@cbomtempo This happens even if there is some sort of media playing, and you use the volume buttons on the keyboard media buttons...