So - are you saying that your sound bar has video/HDMI inputs and outputs? I run all inputs (Wally, DVD player, etc.) into the TV first and the audio output from the TV to the sound bar. That way I have audio via the sound bar no matter the A/V source I'm using. I've never heard of the issue you're describing.
Rob
U.S. Army retired
2020 Solitude 310GK-R
MORryde IS, disc brakes, solar, DP windows
(Previously in a Reflection 337RLS)
2012 F350 CC DRW Lariat 6.7
Full-time since 8/2015