Alex Beloff wrote:well, it's a multicam source (where you put multiple videos for later multicam cut). why would it be different??
I don't know, but it's the only variable that could explain why you can't delete the empty audio track without also deleting the video track.
With non-multicam clips you can delete audio tracks without affecting a video track, as long as they are unlinked. So the fact that you can't delete this audio track without also deleting a video track suggests that the problem is related to this being multicam.
Stepping back, if you knew you weren't going to use the camera audio in the timeline, you could have chosen to just add the video to the timeline without the audio; Resolve has a couple of easy ways to do that.
Resolve 19 Studio, M2 MacBook Air with 24 gigs of RAM; also Mac Pro 3.0 GHz 8-core, 32 gigs RAM, dual AMD D700 GPU.