What to do if the topology evaluation is not right?
Try to increase the value of d min and click Compute. Repeat this until the topology is right or go back to the drawing and change the length or the position of the walls. It is good for the walls when they are crossing to overlap. Maybe you have placed more objects on top of each other. E.g. A wall is placed on top of another wall in the same floor. (this may happen when you do copy paste a floor and you paste in the same floor). Also, do not place beams on top of walls in the same direction. The beams must be free to deform. They can span between two walls.
