[Michelle Patterson]

This worked for me (stacking on the timeline) however if you matchback the audio and grab the audio from the viewer with the drag hand it creates a sub-clip. I found that if the audio is a sub-clip it causes the audio to be out of sync. It has to be a clip.

To do that drag the audio from a synced timeline so it is a “CLIP” rather than a “SUBCLIP” (which will screw up the sync) and then double click on the audio clip in the browser and remove the in point. Then do a multiclip.