在Mac OS X 10.8.4上的iOS模拟器中随机（lldb）崩溃

I've been struggling with an weird issue for some time now. When running my app with the iOS Simulator initially closed it launches correctly. But if I then run it again without closing the simulator it crashes and just prints (lldb) in the error log. If I then run it again (without closing the simulator) it launches correctly. And if I do the same again it crashes. So it seems to be every second time. It works when using a iOS device and I have a college with the exact same project who doesn't experience this problem in the iOS Simulator. What I've tried is cleaning, reset contents and settings, manually removing the app, restarting my computer and reinstalling Xcode.I've been struggling with an weird issue for so