Problem importing fbx animations without skeletal mesh

Hi everyone!!

I have a very important problem that is happening to me and as much as I have searched on the internet I cannot find any solution to help me.

I cannot import animations for which I do not have the skeletal mesh with which said animations were created … because when assigning any skeleton asset to the animations in the import to UE, it gives me this error message or a similar one: "Error : Mesh contains Mesh bone as root but animation doesn’t contain the root track "
And I can’t import the animations

How should I solve this problem to be able to import those animations?