Wake word engine set to "Home Assistant": Only works once, then stops responding

Hey there,

I’ve successfully set up and m5stack Atom Echo using this guide: $13 voice assistant for Home Assistant - Home Assistant

My assist pipeline is local only:

This is my m5stack:

Versions:
Core: 2025.3.3
Supervisor: 2025.03.3
Operating System: 15.0
Frontend: 20250306.0

Issue:
When I set the “Wake word engine location” to “On device”, I can use “OK Nabu”, the LED turns blue, I can say a command and it gets executed. After that, the LED goes back to white and I can say “OK Nabu” again.

When I set the “Wake word engine location” to “In Home Assistant”, I can use “OK Nabu”, the LED turns blue, I can say a command and it gets executed. After that, the LED goes to a light blue/cyan and it stops responding to “OK Nabu”… No matter how long I wait, it never responds again.
If I power cycle it, it still lights up in cyan. I wait for it to be back available (~1min) and it responds to “OK Nabu” again, but again only one time; after that it’s again unresponsive…

Any ideas?

Thanks and greetings,

Andy!

Just set up another one, same thing happens…

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Did you figure it out? I am trying to use home assistant wake word with S3 box.