Animation from MotionMatching GameAnimationSample shrink at the end of animation montage

Hi, as seen from the video attached above, I imported some animations from GameAnimationSample project to to try and learn the whole process of traversal mechanics.

So far, the animation works but however, I found a strange model scaling problem at the end of animation montage as seen in the video. The model will “shrink” down for a short period of time and blend back to normal size.

This seems to happen only for

AM_M_Neutral_Traversal_Mantle_1_0_run_F_Lfoot
AM_M_Neutral_Traversal_Mantle_1_0_run_F_Rfoot
AM_M_Neutral_Traversal_Hurdle_1_0_run_F_V2_Lfoot
AM_M_Neutral_Traversal_Hurdle_1_0_run_F_V2_Rfoot

which makes it extra strange that only a particular animation that has this problem. I check that root motion is already enabled and import size is uniform scale = 1.0

image
image

anyone knows what might be the issue? I have created my own IK system as well, but also tried disabling it will still yield the same scaling result.