Sphere tracing not working intentionally from inside a mesh

Hi guys, I switched from unity 5 to ue4 few days ago, and so far loving it. :slight_smile: Right now i am building a climbing system, which works but i got some trouble getting sphere tracing working from inside a mesh and getting a hit point.
Right now here is what the sphere trace looks like:

Right now the trace hits as soon as starts. I want it to hit the top of the mesh from inside. like this:


The hit will only generate once it hits the top.

Maybe i am missing something, i saw a youtube tutorial doing this and works but not working here.
My Blueprint is pretty simple:

i am running the latest ue4.
Thanks.

This is way late, but I had a similar issue and maybe I can help other folk in the same boat.
The solution was switching the start and end locations so the linetrace starts outside the mesh.