Help with speedtree tree textures

Im working in a doc project and the tree modeller sent me a tree to import to UE4 and allw as fine but the problem is the leafs seems to dont have a proper alpha, how I solve this?

No help?

If you don’t have the correct opacity map for the leafs, there’s not much you can do, but ask your modeller to send you the correct files. Maybe take a look at the materials first, are they set up correctly, is the opacity map maybe hidden in the alpha channel?
Speedtree normally makes a texture atlas for bark and one for the leafs and stuff, the one you have open in the screenshot seems to be the bark atlas, maybe you could post another screenshot of the leaf atlas?