08 Aug 13, 11:06AM
(08 Aug 13, 02:00AM)Hellspell Wrote: I remember thinking it might be because it's too wide, so i tried a narrower one and that works sometimes. Also nothing happens when I want a corridor with an arched ceiling throughout. I don't know why, it's probably something I'm doing wrong but I haven't a clue what.
I'm sure that's the culprit (in bold).
As for your second point, I believe PhaNtom is correct.