My steps: 1. Design my own scenario 2. I'm going to Explore -> Timetable 3. I choose weather pattern and any type of train 4. I'm going to Tools -> Scenario Designer 5. Start my scenario with previoulsly set weather. No matter what snow scenario/service I choose, the snow disappears as soon as I move the train or shortly after. Furthermore, snow always turns to rain. Does anyone know how to solve?