In game map Editor Bug[CRASH]

[Shenku]

i just started building up a small base outside traders edge and wanted to try adding some walls so i looked in the forums yesterday before joining them to see how i could since in game i couldnt see the option to build a wall section then i found the Shift+f12 for in game editor but when i used it the game alwayz seems to crash on me so im pretty much having a hard time dealing with bandits and that trying to destroy my stuff XD