Google Mini - Sound is muted while playback continues

[PSD]

Music suddenly mutes on my Google Nest Mini When I'm playing music from my Pandora subscription. When I check the Google Home App, I can see the music is still playing, but no sound is coming out of the Google Nest Mini, so it appears to be on mute.  I contacted Google support but they couldn't figure it out. I don't appear to have this issue using other music services, only with Pandora.

Moderator Edit: Changing title for clarity

[TannerPandora]

Hi @PSD! Welcome and thanks for posting to community. 

Looks like you may have reached out to our User Support team for further help. To avoid any confusion or duplicate troubleshooting steps, I recommend responding directly to their email.

Out of curiosity, can you tell me if you're casting to your Mini or using voice commands to control Pandora?

[PSD]

Voice commands like " Hey Google, play Dire Straits Radio on Pandora".

Plays of a short while and then goes to mute, but if I go to the Google Home App I can see it's still playing but no sound comes out of the Google Nest Mini.