Smart sound adjustment error


AC Question

I have an HTC 10 and until recently when I adjusted the volume of my phone using the physical buttons on the side of the phone it would detect the context of the volume and adjust it accordingly.

For example, if I was watching YouTube, the buttons would lower the sound bar associated with media. If I was texting, it would lower system effects sound.

Now for some reason it only adjusts the bottom sound bar which is shaped like a phone and I can only assume is ringer volume or the phones overall master volume.

Now when I am watching something I have to use the buttons, expand the volume menu, and adjust the volume manually, then do it again to turn the volume off afterward.

Very inconvenient. Any help would be appreciated!