Blender imported animation warped

Alright. While trying to import FBX Blender animations to UE4, the mesh is being warped in weird ways.
The animation in the nice, comfy environment of Blender:

The animation in UE4’s quality engine:

I have a [video][3] that’s more detailed on the issue.
I have Force Root Lock on, would that affect something?

This issue could possibly be that the animation is using the left kneecap correctly but the left foot is being used on the other side of the mesh(same thing for right side) but ONLY in UE4.

If I were to have this issue, the way I would resolve this is to go to an awesome tool/website that I use called Mixamo, you can use Mixamo to auto rig the character for you and pick some animations and then try to import into Blender and UE4.

https://www.mixamo.com/#

Hope that helps.

I tried the Mixamo app, and one thing I noticed is that the distortion happens everywhere, it’s not ue4’s fault. Might it be Blender exporting unreadable metadata into the FBX file? Blender can read it’s own FBX files very easily and without issue.

An extra detail I left out, the default pose in UE4 displays no warping in the legs. I’m not sure how animations work, but I’m guessing this is a problem?

Not to mention, in an animation that plays when grabbing an item (middle spine and up) the legs are distorted anyways in UE4, which is also very confusing.

Importing the animation from Mixamo to Blender displays the same distortion. Might it be because I rigged with automatic weights on?

Bump #1 pls

only one day has passed, but I feel the need to bump this anyways

bump out of desperation hoping the right person sees the question

bump #4 help