Can anyone help us with the following problem (picture in attachment)?
We are trying to generate models from a layer called "Bodenbedeckung" (engl. ground cover). This layer contains the areas of streets we'd like to color and extrude (simple task). Until this week, the rules worked perfectly for generating models. As this week started, we had several problems, e.g. a few shapes (not always the same ones, random selection) would not be generated, while others do (c.f. picture: dark colored: models, light: shapes).
What's the problem here? We should finish a project within next week and our scenes do not work anymore... We really need help!