I recently updated Maya to a newer version, so perhaps that’s why?
When trying to import and add new animations to my existing skeletal mesh, the newly exported ones come in slightly angled to the left and slightly leaned forward. They are not leaned in maya.
What form of animations are you exporting. In-place or root motion.
Either way the relative position of the animation is based on the origin of the root bone as to how it is applied as either additive of as absolute so I would take a guess that the rotation of the root bone of the exported animation has become rotated to the left and slightly forward