Different Skeleton

This is legacy Dynamic Combat System doc.
it may not work on UE 5.2 and above. Click to show new Dynamic Combat System Documentation

How to retarget animations and replace skeleton (non-epic skeleton).
Character used in video.

If you are changing skeleton in DCS - Magic, make sure to update montages in all ability blueprints as well.
Folder Blueprints/Abilities/Player or Blueprints/Abilities/AI if you are changing skeleton of AI