Some GUI activity mutes the output, e.g. go to Help and scroll the list of topics whilst listening to a stereo input via builtin analogue output. It may be that the long press to activate drag may be upsetting the audio thread??? Next drag seems to clear the mute state. During mute the "No AES Detected" message shows. It may also self clear (unmute) after a few seconds.
Some GUI activity mutes the output, e.g. go to Help and scroll the list of topics whilst listening to a stereo input via builtin analogue output. It may be that the long press to activate drag may be upsetting the audio thread??? Next drag seems to clear the mute state. During mute the "No AES Detected" message shows. It may also self clear (unmute) after a few seconds.