Unreal: Root bone orientation

I detected that the root bone of an imported fbx has some rotation. See image:
https://ibb.co/hZbdzSc
I retargeted animations to another Skeleton. The ue4 manequinn has no rotation on the root bone.
Although animation retargeting works, i have some issues in the retargeted anim blueprints and bone calculations probably the cause (just guessing) of failing of some advanced animations (carrying weapons and items, and more). Is it possible to fix (remove) the root bone rotation?
https://ibb.co/wCCHmf2
https://ibb.co/hZbdzSc
I retargeted animations to another Skeleton. The ue4 manequinn has no rotation on the root bone.
Although animation retargeting works, i have some issues in the retargeted anim blueprints and bone calculations probably the cause (just guessing) of failing of some advanced animations (carrying weapons and items, and more). Is it possible to fix (remove) the root bone rotation?
https://ibb.co/wCCHmf2