I've been using Deezer for a little over a month, and for most of that time, I've been able to control the app with Google Assistant voice commands in my car while using Android Auto. "Hey Google, play Kind of Blue" or whatever.
Then a couple of days ago, voice commands stopped working. The command is still recognized by Android Auto. Google's stilted robot lady voice says "Playing Kind of Blue with Deezer" (and a Google Assistant text box appears on my car's head unit screen that says they same thing), but then there's a long pause and the Google Assistant ultimately says "The Deezer app is not responding. When it is safe to do so, please open the app on on your phone and try again."
The normal on-screen Deezer controls still work in Android Auto while this is happening. It's just the voice controls stopped working out of the blue. Is this a known issue? And if so, what do I need to do to resolve it?