Offset Tracking Result in SNAP : Visualisation

Yes, I have been using Export Mask Pixels to export .txt files.
I want to achieve the result according to your post (below)

However, there are obviously no fields such as heading, range_shift, azimuth_shit and their values ​​in the exported results(pot_results.txt).
I tried File>Export>CSV to export a .csv file but the result is the same.

At the same time, I also checked the GCP Movement layer through the Layer Manager and displayed it, which looked normal.

So I don’t know what went wrong.