Red line on time line

Hi I have a red bar on my timeline. It doesnt play footage where this bar is. It seems to be where I have added titles. How do I get rid of this please?

Happened once before and I had to remove my watermark and replace.any one know any ther option as my titles are subtitles with a lot of text in them.

Yeah, I forget what that means, but it is super rare. Send feedback to Apple about it, cause you're technically never supposed to see those red ones. I know they've actually contacted a couple of folks who've seen those before.

What format is the original clips (video and audio) inside that Compound?

Audio 44.1 wav file. Video 24 fps 1080 HD.

Managed to fix it.

I seemed to have elements from the project saved to a disconnected hard drive.

The red lines disapeared when restarted computer, after re connecting missing storage device.

Should I feel special then since I have had the same red lines? Like Dbrenton though...they disappeared after a restart.