trying to put together a timelapse video using GoPro footage and adding a track from a local band. I load the pictures (adjust to 30 fps) and music track and everything is great. In hopes to end the song at the same time the pictures end, I trim the song track at the end of the last picture on the timeline. So far so good. When I then play it back in the timeline to see how everything is looking, the music cuts off about 2 seconds early, even though I can see the music track in the timeline. I tried to reload the music a couple of times with the same result.

I decided to go ahead and produce the video just to see what would happen and the music and pictures went to the end just fine. Is this just a glitch where the music cuts off early in the editing process but works fine in the producing process?