I am having an issue exporting my Blender animations to UE4 while using a Character from CC3.
I'm using auto rig pro, and exporting to animations to UE4 through it. 
The problem is, the spine doesn't appear to be lining up properly, almost as though it is somehow tilted forward a bit. 
I tried fixing the problem manually in UE4, but not much luck.

Anyone have any suggestions?

Its hard to say what could cause the problem from your 2 screenshots ...

What skeleton did you use when you imported the character? The UE4 Mannequin skleton, or the CC3 skeleton?
Do you use Blender only for amination? What skeleton does this plugin create (what bonenames)? Did you retarget the animation?

I've actually kind of solved this.
So instead of importing the character straight from CC3, I did some weight painting on the character in Blender, and exported the character through Auto Rig Pro, seems to solve the issues.