Import obj mtl into delightex

Hello Members and Dev-Team,
we build in a workshop houses etc. in blockscad3d and want to import them.

We made a test like:
//!OpenSCAD

color([1,0.8,0]) {
sphere(r=10);
}
color([0.2,1,0.2]) {
cylinder(r1=5, r2=5, h=50, center=false);
}
color([0.93,0,0]) {
cube([10, 10, 10], center=false);
}

(It is not a house but the code / data has the same problem.)
We rendered it, saved as obj and mtl.

Now we want to import obj and mtl (stl works without color) into delightex.

The stl works… not the obj with mtl for the color. (Import Failure)

Has someone tested it and has the same problems?
Ideas how to solve the problem?

u have to put both files (obj+mtl) in a zip-file.

OK…. how big maximum?

@Muensteraner Your model uploads shouldn’t go over 50 MB.

usually well under 100MB