Simple rotation animation not translating well from Blender to UE4

I just rotated a cube 360 degrees around it’s own axis and then imported to UE4. It works fine in Blender but the animation just rotates slowly by a tiny amount of degrees when viewed in UE4 and then abruptly starts anew. Other types of animations seem to work fine. I just can’t get a simple rotation animation to work for some reason. Here’s a screenshot from blender: Imgur: The magic of the Internet and one from UE4 Imgur: The magic of the Internet