Why won't 3DS Max export materials (FBX 2013)?

I`m using 3Ds Max 2015 and when im exporting the model as a FXB 2013 it wont export the materials.
The materials are .TIF images. Im testing the ATree plugin to make trees, until SpeedTree shows up :slight_smile: Heres what my setup looks like:

http://s26.postimg.org/dmbsj8ee1/No_Material.jpg

The white spheres is whats supposed to be the bark and the leaf-materials. The tree works fine.

I was ablle to “fix it” in some way. I exported the .TIF files to .TARGA in Photoshop and imported the .TARGA files directly into the content browser :slight_smile:

http://s26.postimg.org/cmlhniz89/Import_TGA.jpg