http://bugs.winehq.org/show_bug.cgi?id=23362
--- Comment #4 from Florian florian@fkoeberle.de 2010-07-03 13:44:28 --- As described in bug 22588 the editor crashes with the same backtrace if you switch to the terrain layer of the terrain editor. See comments 31 and 32 of bug 22588: http://bugs.winehq.org/show_bug.cgi?id=22588#c31