Hi,

I pretty much sure there is some sort of a problem with material assignment when the model is exported to the OBJ format. I can see that after adding/removing certain pieces furniture from the model and exporting it to the OBJ file some objects have wrong material applied (as seen in blender), e.g. glass panes in windows have a material of a book from a tv stand, or from a ground texture.

Is it a known problem or I should report it ?

-Wojciech