I have the same problem as talked about here:
I cannot increase/decrease bluetooth volume after last googletv update with the google remote controler, but I can with the virtual remote from googleTV app (android).
The "normal" remote control still acts as IR volume control device and not as bluetooth remote control device as it should and did before the update. I still unpaired/paired remote controler and bluetooth speaker a few times without any changes to this.
I hope U will fix this soon with an software update.
If you have any further ideas, you are welcome.
Hey there, TimWetter
I am sorry about the late response on this, thank you for being patient! Were you able to resolve that Chromecast Voice Remote issue? If not, I'd be happy to help out, since this sounds like a tricky problem. Now, just to double-check, if you go into your Chromecast with Google TV settings and change the Chromecast Voice Remote settings from HDMI-CEC to IR, does it function properly with your Bluetooth speakers?
I look forward to your response, and if you have any other questions or concerns for me, please let me know!