Exactly that I wanted to say. I just downloaded the latest version of your SecEditor beta 7, but when I try to open certain maps, it sends me an error message, either made by the community or official maps.
the error message says "Can not create sector: sector is not convex! (line 2026)" and the other error says the same but with line 1933. Do you know what this problem is?
By the way are BEL / BCD maps.