Originally, this model was working, but I had to optimize my trees a bit, so when I deleted some edge loops, all of a sudden the tree branches no longer show up in unity. The trunk part shows up just fine, but the branches don’t show up. I’ve even reversed the normals for the branches and they still won’t show up. Not sure what I did. It’s as if the green leaf part sticks out over the branches, but in maya, the green part is definitely behind the branches. Can’t figure out what’s wrong with it! Does anyone know how to fix this? Thanks a lot!!
from your top screenshot it looks like the normals are indeed backwards.
on the mesh import settings, try setting the normals checkbox to “calculate” to see if that does the trick.
otherwise re-smooth your object in max/maya or whatever, and re-export, then re-import in unity.