I am creating a demo in the Dragon Age toolset, currently I am building a castle. I am having problems with little holes throughout my level. What I mean by this is the tiny seams between the walls and floors. I have snap to grid enabled and all wall or floor tiles are placed perfectly as far as I can tell but they still have a gap causing graphic bugs when the level is tested. I am sure I am just doing something wrong, any ideas? Thanks edit, might help if I spell design correctly. fml.