Open your Arma3Profile at "Documents\Arma 3 - Other Profiles\YourProfile\YourProfile.Arma3Profile"
Go to the very bottom and change the line sceneComplexity=NumbersHere; to sceneComplexity=0;
Save the file and start up your Arma 3.
Go into editor and experiment.
I was using the Arma 3 Profiling branch during the time I found this bug, if you aren't able to reproduce it, try changing to the Profiling Branch.