Every time I load my map back up the vertices that I've moved from their non-start position will do whatever the hell they like and form really weird out of place shapes. How do I stop this from happening? It also happens on the simplest of manipulations. Move one corner of a square up four units and then when I load my map up the whole brush is completely different and out of place. EDIT: And when I compile after fixing the vertices they compile into the messed up shapes.