Sonos One doesn't play tts with 'ERROR_AUDIO_CLIP_VOICE_ASSISTANT_PLAYING' error message

[pascalmtts]

First of all, thanks for the great custom component. Unfortunately the TTS function only works for me on my Ikea Symfonisk Speaker. As soon as I test the whole thing on my Sonos One I get the following error message in the logs:

This error was caused by a custom integration.

Logger: custom_components.sonos_cloud.media_player
Source: custom_components/sonos_cloud/media_player.py:147 
Integration: Sonos Cloud (documentation, issues) 
First occurred: 15:57:22 (1 occurrences) 
Last logged: 15:57:22

Play request failed (499): {"errorCode": "ERROR_AUDIO_CLIP_VOICE_ASSISTANT_PLAYING"}

The best part: I don't use any voice assistants in my setup.

[pascalmtts]

Strange, after rebooting my Sones One it is working now.