Why does my rig animations work weirldy?

I’ve been trying to fix this thing but i dont know how
when uploading the rig animations which i made in “Moon Animator 2” its different from the original


it just glitches the parts and moves them more??? idk how to explain it, just watch the video.
i really need help with this

Im not sure, if this will work, i had the same issue, some months ago. You probably have the Model anchored, or the wrong parts anchored. The only part that should be anchored is the “HumanoidRootPart”

the only part anchored in the model is the HumanoidRootPart