Models export from Blender to Unreal Engine

Normally the export from Blender to Unreal Engine (UED) works very well for me.

I tried to export a staticmesh with two materials with Blender and Doc Holidays Script as ase and as lwo (which is a default exporting possibility of blender).

The two materials work in Blender, but only in the renderwindow, in the preview there is only one material (UV Layout worked well), but the materials appear correctly in the materialslots.
Is there a way to preview both materials in the textured 3d Window in Blender?
After Export and Import to UED there was just one materialslot (ase and lwo the same).
Does anyone know how to export objects with more than one Material from Blender to UED?

Edit:
Okay, I found a script (.ase exporter) which makes it possible:
http://www.doom3world.org/phpbb2/viewtopic.php?t=9275&sid=81467a997e38702d10880423152a1d80