Shed Roof occasionally reverts back to a Gable Roof, in 2019 version. Not sure exactly when it happens, perhaps when I return to the roof tab. The Shed Roof has a 2:12 pitch. Wall in front is higher than back. When it reverts to a gable roof, it becomes a zero pitch room, the front wall protrudes through the gable roof. I then have to rebuild the shed roof. How do I lock in the shed roof, preventing it from being changed.
Also, It took a long frustrated time to figure out how to create a shed roof. It was not intuitive and nothing in the training guide addressed the topic directly. My method was to modify the default gable roof by deleting 3 panels, then stretching the remaining panel into a rectangle. If there is a better way please describe. Suggest a training video.