Mixamo autorig z-up root motion problem

Hi after my failed attempt at trying to get my original 3ds max biped rig working for root motion i have tried using a Mixamo Unreal rig but now there is another problem.
It appears unlike the default herotpp skeleton and Kubolds movement animset pro skeleton the Mixamo rig is y-up on the root so when i apply root motion in UDK this happens.

I also work with animations in Motionbuilder, the different axis roots make this rig incompatible with every animation i was going to use, here is the comparison.

If someone, anyone could please help me i would be forever grateful.

Note i have tried 10’s of different configurations of exporting, importing, retargeting and merging between 3ds max, mixamo, motionbuilder and UDK.

Did you ever solve this?