Probably because the Reflection vector is in World Space in UE4 now by default and you need to convert it. Try to use a transform node just after your reflexion vector.
I don't think I've ran into that particular problem but similar things. I'd try combining the object with a new sphere then delete the sphere and delete history and freeze transformations.
I thought Navigation in Zbrush was easier with a tablet?!?!? Never tried it though, I just got use to using It with a mouse, Local Transformations Saved me from raging
Did a bit more noodling on figuring the gauntlets out. I think I'll go with a chunkier Transformers like gauntlet that plays video games! Like Astro Teemo :)
Click on the transform menu, and make sure 'Collapse Points When Snapping' is toggled on. Be sure to only translate one axis though, or it will collapse them all to a single point
... urg, they're going to far with those transformation >.> reminds me of SuperSaiyan... wanna see something also totally out of their mind? http://www.youtube.com/watch?v=a5CH_y_AuxI
Your normals are reversed. If you have an inverse scale on those parts, freeze transforms first, then check the lighting before deciding if you need to reverse the normals from there or not.