Motiontracking Tutorial

Could someone do a motion tracking tutorial?
I had been doing it for years, but I cant do it anymore.
Im probably making a stupid mistake.

There are some demo files with xml at:

https://cinelerra-gg.org/media/demos/stabilize/

If you load the xml with the files and check the Draw vectors box in the Motion51 controls, it gives you an idea of what it is doing. Good Luck !

Do you know this old link?

If you try to describe the problem youre facing, maybe we can help.