Hey @Hiphopsuperman thanks for the video. Sounds like there's something not quite right with the YTM app as opposed to the speaker; pure guess though.
I tried using the app on my iDevice tablet (don't have the phone) and the rockers work, as you show, but I can't seem to get a widget to slide down as you are able to do to test. I generally use voice commands and don't cast. However, I'm also seeing lots of confusion on the screen in the app. For example, YT Music is open, I cast from the screen and chose a speaker and then volume control works with the rocker, but it does nothing when I drag the volume slider in the app on the tablet screen. In fact, the app itself doesn't even show the song is playing nor is the timer for the sound scrubber moving. I also can't get a widget to appear in the swipe as you do on a tablet, but that may just be something for the phone. I do have a widget on the tablet home screen but no controls at all, tapping it simply expands the app.
Let me ask you to try this, load up your song as you normally do and test the phone rocker again, but instead of trying to control it from your widget, open the Home app, annoying extra step I know, but I want to see if the speaker volume can be controlled from within the Home app using the sliders when the YTM app is the source and you're not using voice commands.
While the volume is controlling the speaker I think it's more an app bug that the volume slider doesn't work by touch. I'm going to send feedback in the YTM app, could be something gone haywire with the API, you may wish to do the same. You might also want to post in the YTMusic forum, they may have seen this before too, not just with Nest speakers but other cast-enabled speakers.
