I just purchased Q90r yesterday. I got the exact Issue.
I use Xbox S to stream Netflix content to the soundbar, the dolby atmos contents sounds perfect, but when i play back non atmos contents, the rears just have no sound, seems like the rear surround sound output thru front top speakers instead of the rear.
Then i changed to audio output of the xbox s, bitstream remind to same, but switch to dolby digital or dts if u gonna watch non atmos content, then the rears back alive without turn on any virtual sound mode!!!
It's absolutely a bug for the soundbar but hope this can help instead of sacrifice a potentially awsome soundbar.
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