Due to recent animator update, you can no longer import animations by id made by others.
But using this trick will help.
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1
Copy the id of the animation you want to modify. -
2
game:service("InsertService"):LoadAsset(YourAnimationId).Parent= workspace
Replace ‘YourAnimationId’ to the animation Id you copied,
and paste the code into command bar and press Enter -
3
now get the Id of the animation you inserted -
4
replace the id to the animation id you just got, execute the command again,
and copy the ‘ImportedAnimation’ file -
5
Now create a dummy, create an empty model, name it ‘AnimSaves’, paste ImportedAnimation you just copied into the ‘AnimSaves’, open Animation editor, load the animation and modify it