Volume Notification wont automatically disappear - am I missing a trick?

Since Marshmallow I have noticed that if I adjust the audio in for example a video, the pop down volume notification wont automatically disappear unless I press the screen.

This is pretty annoying as this causes some videos to pause or other screens to pop up.

Has anyone else noticed this, and if so, is there a simple fix?

Any trick to getting 20G update?

Hi folks,

Brand new D851 here! I want to get it fully updated to 20G before going ROM happy. I'm aware of the 20G flashable ZIP (here) but figured I'd just get it to download. The phone (new, from Amazon, unlocked) came with kitkat. I skipped the setup process and have no SIM in it; once I connected it to wireless it promptly downloaded and installed 20E. But there it sits. It doesn't seem to understand 20G should be waiting. Repeated checks for updates don't goose it along.

Is there some trick to this?

I will probably quickly exit stock, and then set up maybe Blisspop or something similar for 5.1.1, configuring for AT&T (I'm on ATT and bought the D851 due to unlocked bootloader).

I'm not shy flashing the zip I referenced above, just figured it might be better to update via the normal route if possible.

Thanks in advance!