Imported Collada mixes up Textures


I want to model a little city and therefore I import some Google Warehouse Collada buildings.

The problem is, that when I export the scene with OGRE exporter, the textures of the Collada Buildings get mixed up completely.
I assume this may have to do with the fact, that some textures have the same name.

Is there a proper solution for my problem?

no idea? :confused: