In my Vegas Pro 20 program - I have one video clip and a separate audio track that I want to align perfectly (one above the other) on two separate lines. Previously, the clip I moved to align to the end of the other media clip would flash a yellow line to indicate the clips were aligned perfectly, but now it doesn't. I have to zoom in close to line them up with no indicator but by eye that they are aligned, which is taking far more time. I may have accidentally turned a setting off. Can someone please help with how to resolve this issue?