Transfering clips

Hi. Running 2x on Mac 10.5. I have 3 tracks. I split, ( edit, clips, split) a section in track 2 into a single clip and then copy and paste into track 3 (empty space). This is successful, but corresponding area on track 1 disappears! What is going on here? :frowning:

Select the track you want to work on by clicking above the MUTE button? It sounds like you had both tracks selected by accident, maybe?