Skeletal Animation Corrupted in Unreal(+Link)

My animation gets corrupted in Unreal. I’d love a hand, if anyone has the time.
Here is a link to my animation in Blender: https://imgur.com/a/Fi4IO
An in UE4: https://imgur.com/5FvKBQd

You should look for tutorials how to import animations from Blender (just guessing) to Unreal Engine 4. This is not gif from Unreal Engine - screens from Unreal or gifs and better problem description can help you more.

Sorry about that. Now I have added a gif from UE4 showing the bone corruption.