I posted this before and it was closed without me having the chance to respond. The previous response recommended "turn it off and back on again" and a factory reset. I did both and it did not change the behavior at all. Is there any actual information that might be helpful for this issue?

The original message is below:

I have a Q990C and it plays great audio, but doesn't actually start outputting sound until about a second after the input starts. This I think this happens any time the input format changes (e.g., 5.1 to stereo). The video does not change or cut out and this happens when starting to play content (like a youtube video) from either a computer or Roku. My setup uses HDMI passthrough (input devices are plugged into the soundbar and my projector plugged into the output). I have tried all the modes I can find through the app and remote.

Has anyone encountered this or know something that might help understand it?