Okay, I have made some good progress on the door problem - the doors on the inside finally correspond to the doors on the outside, and they no longer interfere with the portals :). The doors opening/closing looks really good now compared to before (before I had separate doors for the inside and out and the portals would turn off and you could just see what was beyond the portal).
Anyway, alpha release should be in the next few days. Stay tuned!
