Interregnums

So I created a wall. From scratch this time. However no matter how I apply the physics in the upload section. It doesn't take. In the preview window they look fine, windows and doors are not blocked and walls are ... well, physical. However in world I can't walk through my doorway. I set the physics to high and medium and have tried both generating normals and not generating normals. As well as going through the physics 'analyz' options. Any ideas? PS: I am happy to share my wall somehow. It's only a draft wall as the windows are wonky.