Metallic and Normal Map not working with alpha

Hi all, I have a model that I imported from Sketchup using Datasmith. I then selected all of the descendants and merged actors. I added a normal map to one of the textures that has an alpha channel and checked the metallic box. I didn’t see any difference. I then changed the blend mode from translucent to opaque and the metallic and normal showed, but now the alpha was not working. What am I doing wrong here? Thanks in advance.

Using UE 4.26.2
Sketchup Pro 2020

I figured it out. I needed to add an Opacity Mask texture to the master material. Still learning.