Right now in the volume control if I have NVDA set to sound mapper or headphones I am unable to adjust the volume in the volume control. When I do the volume for NVDA jumps back to 27%. This is 3% less than my normal audio in case that helps.
If I switch NVDA output to speakers I can then adjust the volume control.
I have disabled any volume add-ons and made sure that audio ducking is off.
I can adjust the volume in NVDA speech controls with no problem.
I am running NVDA 2021.1
Windows 10 21H1 (64-bit) build 19043.1110