hand bones inconsistent during ego motion

[Yaxit]

Hi, I observed recently a quirk with the hand pose, which seems to happen when tracking the pose in non-stationary settings.
I performed an ego recording (on-device) while walking araound, and the skeleton of the hand seems to deform at times, in an inconsistent hand shape.
In the attached figure, I'm plotting the last two bones of the index, and you can see 4 distinct sections where the bones change shape, at times drastically. Also have a look at the video.

Has this been observed already?

Screencast.from.27.03.2026.09.34.15.webm