Edit: Problem solved. Don't bother with replies Everything is sealed. I go over with details turned off and everything looks fine. Half of the map is fine. I mirror. I compile. 4 areaportal errors, they're not touched 2 sides. 2 areaportal bugs for each half of the map. Every areaportal in my map looks like it is closed, so the doorways are a glitchy mess. I click on "Load Pointfile" and the red line goes through 3 solid walls and ends in the air, with the other end at one of the glitchy areaportal. Any ideas?