I first exported an infinity blade warrior and put it into Mixamo and created 1 animation for it, a slash, Then I imported 2 things happen, 1. the animation failed to import with the output log saying something(First Pic)and 2 if it does import, the animation into UE4 and the animation is messed up. should I create a whole new mixamo character and import that plus animations and just do anim retargeting?