Animation is messed up somehow

So actually all I did was extend my character’s falling animation to the same amount of frames as Jump_Loop.

Looks fine in Blender:

However, once imported into UE4, the right foot is rotated 180 degrees for whatever reason:

I fixed that animation, but once again I am having problems.
I remade the running animation, making sure it was the same amount of frames, and suddenly the jumping animation is messed up.

28195-jump+2.png

28197-jump+1.png