I have updated the Find Bad Motion Tracks addon to also detect duplicate tracks.
Previously, it could detect single tracks moving differently from all the others, simplifying cleaning up your tracks.
This new version detects overlapping tracks. What I found when I tried this is that some tracks overlap for a bit, and then one of them just slides away. Duplicates found are sorted with the most suspicious pairs at the top, simplifying finding outliers like these.
Highlighting duplicates enabled me to find even more bad tracks than the previous version, which one user described as "A huge time saver". Let's see if we can beat that!