Google Assistant/Mini Playing Youtube on wrong Chromecast?

[TwoSevenThree]

Have two Chromecasts and Google Mini's on our network. One pair set up in the 'Master Bedroom' and a second set up in the 'Basement'. Both Placements correctly in Google Home and both Mini's have their Default's set up the correct TV's (Master Bedroom mini defaults to Master Bedroom TV, Basement mini defaults to Basement TV)

The "Okay Google, Play XXXX" or "Okay Google, Play XXXX from Netflix" command works perfectly in both zones, will start properly in each of the areas where asked. So looks like the defaults are correct.

However, Youtube seems to have a problem. When anyone is in the basement and asks "Hey Google, show video options for XXXX", or "Hey Google, show video options for XXXX on Youtube", or "Hey Google, show video options for XXXX on Basement TV", The Google mini replies with "Sure, here are some options, showing on Master Bedroom TV" and immediately defaults to the Master Bedroom TV and shows the options here, can't get it to play or show options on the basement TV at all.

Is there a default for YouTube specifically I'm missing here? 

[JenniferV]

Hi TwoSevenThree,

Thanks for visiting the Community.

Since this thread hasn't had activity in a while, we're going to close it to keep content fresh. 

We hope you were able to get the help you need but if you're still having trouble, please visit this support website article to learn more about playing YouTube videos on Chromecast-enabled TVs with your speaker or display. 

If the issue persists, feel free to submit another post and provide as many details as possible so that others can lend a hand. 

Hope this helps!

Thanks,

Jennifer