ALSA and Input errors when running google-assistant-demo

[MAProsper]

I was following the Google Assistant SDK - Library Guide everything was working as expected, until the Run the Sample Code section. Once run googlesamples-assistant-hotword --project_id XXXXX --device_model_id XXXXX it hangs up not responding to the hotword, outputting the following:

ALSA lib pcm.c:8481:(snd_pcm_set_params) Unable to set hw params for CAPTURE: Invalid argument
device_model_id: XXXXX
device_id: XXXXX

https://embeddedassistant.googleapis.com/v1alpha2/projects/XXXXX/devices/XXXXX 200
[6189:6204:ERROR:assistant_nupnp_client.cc(103)] Cloud discovery nupnp request failed: [60] Peer certificate cannot be authenticated with given CA certificates
[6189:6213:ERROR:audio_input_processor.cc(748)] Input error
ON_MUTED_CHANGED:
  {'is_muted': False}
ON_START_FINISHED
[6189:6204:ERROR:assistant_nupnp_client.cc(103)] Cloud discovery nupnp request failed: [60] Peer certificate cannot be authenticated with given CA certificates
[6189:6204:ERROR:assistant_nupnp_client.cc(103)] Cloud discovery nupnp request failed: [60] Peer certificate cannot be authenticated with given CA certificates
[6189:6221:ERROR:audio_input_processor.cc(748)] Input error

Investigating I found the googlesamples-assistant-pushtotalk sample, which after adding --project_id XXXXX --device_model_id XXXXX for the first run only, works perfectly every time.

The google-assistant-demo acts exactly as googlesamples-assistant-hotword does.

[Fleker]

What are you using for the microphone? Looks like something unexpected is happening with the audio input.

[MAProsper]

I'm using a pair of loopback sound cards, which are being stream from and to the network. These can't be modified by alsamixer.

All the preliminary tests work fine (speaker-test, arecord and aplay), as the googlesamples-assistant-pushtotalk demonstrates.

[Fleker]

Are you still seeing this issue?