Distortion/Buzzing via Bluetooth

I’m having noticeable distortion while streaming via Bluetooth. See the attached files for FR at 1 khz and 100 khz via USB (no distortion) and BT (obvious distortion). I also don’t have this problem via Bluetooth using YouTube - only Audirvana. I have also tried turning off my Wi-Fi router and Wi-Fi on my laptop: No change. I have the latest Audirvana 3.5.24 (3554). It’s upsampling 16/44.1 to 24/48 and I have no options to change it. Thanks for your ideas.

Bumping this up on the list, still no solution. Help!