VS 2021 Masking problems

[firecharger]

I'm working on a video mask and I'm having a lot of trouble with the keyframes. On the first frame, I draw my mask on my object, then I detect movement to the end of the clip. Now when I try to go back to adjust the spots on the keyframes where the mask didn't follow the object it just ceases to make sense to me. Instead of adjusting the box in the keyframe, it makes a new box that doesn't track with the first box. I'm talking about a 1 second clip here.

Does my issue make sense? When I track to the end of clip, then I try to edit each key frame it just doesn't do what it should. Instead of adjusting the box in the key frame, it makes another that doesn't move with the first box.

[firecharger]

https://ibb.co/zVNK1gQ here's a screen capture of what I'm talking about

[firecharger]

I went back to VS 2020 ultimate because the mask creator actually works. The mask creator in 2021 version is infuriating. Whatever the programmers were trying to "improve" made it worse.