Also a google home mini with same exact issue. This started about a week ago. I can no longer stream anything using voice commands. Using an app works fine for the same exact content, like radio shows, or youtube music. This happens every time I try to stream. If I ask a question, like what time is it, then no problem, I get answer.
If have rebooted both devices. I have done a factory reset on the mini. My wifi is fine, I can stream to chromecast without any issues (using apps).
Answered! Go to the Recommended Answer.
I noticed something else ... this only happens when I try to stream from a group. 100% fails if targeting a group, works always if not a group. And apps will stream fine either way. No problem with them, just the google assistant.
Thanks for reaching out.
Sorry to hear about this experience. A few things I'd like to ask-- when did the issue start to happen? Is it working on your commands before? Lastly, could you please list down all Chromecast and Google Nest speakers that are connected to the same Wi-Fi network and let's figure out what's causing this.
Keep me posted.
Thanks for the update. Glad to know that it's already working. Your post would be very helpful to others who are also experiencing the same.
Since this has been resolved, I'll consider this post as complete and will lock the thread in 24 hours. Feel free to start a new thread if you need assistance with your Google Nest speakers and the community would be glad to help.