Anim Location Track doesn't Import for specific bones

[—link to download file below—]
If you take a look at the eyebrows in all 3 animations below, you’ll see that all transform tracks are exported properly from blender into the the FBX file as viewed from autodesk FBX viewer. However, upon import to UE4, only rotation tracks will play for the eyebrows, the location remains static, even though the FBX file shows that location tracks were imported for the eyebrow bones. Anyone know what might be going on here?

ANIMATION IN BLENDER BEFORE EXPORT:

298831-midoriya-browtest1.gif

ANIMATION IN AUTODESK FBX VIEWER AFTER EXPORT

298832-midoriya-browtest2.gif

ANIMATION IN UE4 AFTER IMPORT

298833-midoriya-browtest3.gif

Download the FBX file here:
https://drive.google.com/open?id=1XF2-fQoLddcZ8eFMH0nrLXmuJGYQyyfM

**Here’s a screenshot to show that the animation tracks for the eyebrows are actually imported to UE4.

298834-annotation-2020-03-30-164539.png