Track shading...

I have one track in my current project that appears ‘shaded’ when the cursor flies over it or it’s selected. I can’t figure out the significance of that. No other tracks appear that way and the track plays fine. Anybody have an idea?
Slash Fill.png

OK… I figured it out… There was a section behind the working part… How I managed to put 2 on the same track, I don’t know…

Merry Christmas.