Hi all,
Here’s what worked for me (Working in Blender):
a) Setting scales to centimeters in blender with unit 0.01 and when exporting (FBX screen) scaling mesh back 50 time.
b) Applying transform (CTRL + A) in object mode for both Object and Armature.
c) Changing name of armature from “Armature” to any other name. Apparently UE4 doesn’t like that name.
d) When exporting - exporting all (not just selected) and then hitting “Export All” when importing to UE4.
I played with it for like an hour until I found the right setup, but it works eventually.
Hope that helps and thanks to all the users who posted !