Set Morph Target Does Nothing

Well I am at my wit’s end, I have a couple of simple morphs that work just fine in Persona–I can slide them sliders all day and everything works.

However, when trying to set those exact morphs with SetMorphTarget, both in C++ and Blueprint, absolutely nothing happens.

I have followed all the docs, and everything works perfectly up until I try to set them from code.

Any ideas?