Can't delete little white triangle at bottom of time code using Traktor

Hi everyone, As per subject, I have a little white triangle that’s at the bottom of my time code in a particular song. It seems to be preventing me from setting Cue 3 or 4. Cues 1 and 2 are set up fine at the before naming of the tune. But when I try and place cue 3 near the end of the track it actually places much later in the song. And I can’t remove the little white triangle.

Any ideas please?? Thanks :wink: is