During editing, to hear what I have done so far, I put the Now cursor one or two clips back and hit the spacebar to play.
Very often, instead of my audio, I hear a digital whine similar to when you have a digital earth loop or an open cable running near a monitor or some digital equipment. It is not very loud.
So I hit spacebar to stop, the Now cursor jumps back to where it started from, I hit spacebar again, and my audio plays normally!
I carry on editing, everything is fine for a while, I can hear my audio, then suddenly it happens again.
Very strange.
I am assembling a song from split clips I made from live recordings. In this I am using straight tracks, not comping tracks.
I have two projects open at the same time. I am dragging clips from the original recording and dropping them in the new project. Everything is straight audio clips, no plugins, nothing.