Hey rheinvisuell -
Thank you for the additional information it helped me create a responsible test project, but unfortunately I am still not getting a crash as you describe it. I am linking a Project which was created in 4.3 of the Engine and another of the same project converted to 4.6.1. If you could try both of these projects to see if you are getting a crash, perhaps you have setup something that I have missed.
Let me know -
Eric Ketchum