Sound appearing on timeline whilst timeline is empty
Hi guys, I am using FCPX to edit promo videos. However, sometimes a sound appears on the video that I am editing, whilst no sound is used on that part. It's hard to explain; it’s like you’ve accidentally left a piece of a video on top of a timeline, but this time no video or sound is actually there. (although it IS sound from one of the videos). It’s really annoying and I can’t seem to find what it is. It has happened to me a few time with different videos/timelines. Does anyone know what this is? Also, it doesn’t disappear when you change the footage for other footage.
So it's basically hearing sound whilst that part of your timeline looks empty: