Herr are four pictures of the qu16 while error appears:
Theres nothing running. No DAW, no recording. Just a Smartphone connected to st3 with Spotify running. All other Channels where muted. FX was open but just assigned to channels that where muted. Iam using this configuratin for years to make playalongs running while drumming to it. Nothing changed.
The qu16 is about 5-6 years old and is running in a practice room with a temperature between 15 and 30 degree Celsius.
The St channels just seem to be clipping. But there is no sound. Music stops. Nothing until I restart the qu16 and after a few minutes the same error.