I've got this issue also. Through elimination I found out that the bad audio only occurred when I had my MX Master 3 / MX Keys connected via Bluetooth. I worke

I've got this issue also. Through elimination I found out that the bad audio only occurred when I had my MX Master 3 / MX Keys connected via Bluetooth. I worked around this through using the unified receiver, but it's pretty crap that this is necessary.