Hello, I've been using Allplan for years but this is the first time when I faced this problem. When I want to draw a roof frame, after I apply the settings I want and start drawing, it just doesn't draw. First, it doesn't consider my offset set to 0.5 m, and right before I try to set my slopes my roof frame disappears. First I thought that might be a wrong setting somewhere in my project, I tried to make an identical roof in other project right next to the one already drawn and still the same problem. Have a look, maybe someone has a solution!