@jonas said in upgrade 08.3?:
Check that you have ALSA and PulseAudio as options under Output.
Check that your soundcard is listed under device.
Try specifically selecting ALSA or PulseAudio and the device.
Working perfectly now, thank you enormously 
@otikscypi said in GStreamer installation is missing a plug-in:
@catch22 I had the same error just a second ago.
Fixed it by entering strawberry settings and reselecting an output device via dropdown. Hopefully this will help you as well.
Yes it certainly did, super thanks!