The attached file AudioDevicesInUse.txt suggests that 'audacity' is stealing the hardware device from pulseaudio -- bypassing it.
If that is the issue then it's unfortunately not a bug. You need to be sure that all audio software (including audacity) is configured to use PulseAudio only, and not ALSA directly. Because the latter will prevent all other audio (via PulseAudio) from working.
The attached file AudioDevicesInU se.txt suggests that 'audacity' is stealing the hardware device from pulseaudio -- bypassing it.
If that is the issue then it's unfortunately not a bug. You need to be sure that all audio software (including audacity) is configured to use PulseAudio only, and not ALSA directly. Because the latter will prevent all other audio (via PulseAudio) from working.