I re-installed google home and created new routine with announce command, no audio device in selection. While created a routine with play music, then all audio devices are there for selection. Definitely it's a big bug on google home routine. It's quite simple to test it by just creating an announce command. You have no changes to select audio device. And when you play the routine, it seems that it's working but no any voice comes out at all.
Thank you very much !
Sorry to hear that you're still having issues with this. Would you mind uninstalling and reinstalling the app? If the issue persists, I would suggest sending feedback to our engineering team through this link so that they can investigate this.
Please let me know if you have any further questions.
I've already done that as I stated on previous posts. It's very easy to re-create the problem. Just create a routine with an announce command, it won't let you chose audio devices. Don't know what's happened to it.