I'm excited to warn the community but I'm not excited with the bug, I'm making a video but i have to tell you right away.
Conditions:
-Load door in interior cell that connects to load door in exterior cell causes ctd
-Cow same exterior cell causes blue screen
After many hours of testing I've come to this conclusion, there's a limit in room static pieces that you can put in a interior cell, so it's better for you all to start dividing your big dungeons into smaller ones.