How to modify mixamo animations with blender

Development Character & Animation
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1

Im working on a project in UE5 using a mixamo character with its animations.
I want to create a custom animation for the same character while i maintain others mixamo animations, so I exported the same character to blender and created the animation, but when I import the animation back into UE5, it appears deformed.

I guess the issue is related to differences in the bone structure after editing in Blender. Im cracking my head trying to find a solution and i think it shouldnt be that difficult, but im new to all this blender rigging stuff.

How is the way to go in this situation?

Also the animation i want to do is really simple, would i be better trying to learn how to make the animation in unreal instead of blender?

Thanks in advance

2

Why did you change the bone structure then?

Are you maybe forgetting to use the correct export settings and adding leaf bones?

(And you are never better off learning to do anything that can be done outside of it in engine)

3

I didnt change the structure or anything, see thats one of the reasong im cracking my head, i dont understand why the bone structure(or something related to it) changes simply by importing and exporting it in blender. I even did the experiment, just importing and exporting the animation with 0 changes, it appears deformed in ue5.

I’ve tried unchecking leaf bones and practically every export/import setting

4

Maybe you just didn’t select the existing skeleton during import?