Using world editor (f11) makes my game not working.

Whenever I try to use the world editor, my game stop working. Well, it is not true, it has worked 3 time, but the major of time, the game stop working.

Is there something I could do to make it work properly?

Thanks.

 

How does it stop working? Are you pressing "J" to pause the physics before you move stuff around in the editor? If I have the physics running I sometimes it crashes.

 

It doesn't really crash, it's just that the game is not responding anymore. And yes I'm pressing j, but most of time it's still stop working.

 

What are you doing in the editor when it stops working? Does the game just freeze when you get F11?

 

Yes, I just click on f11 and it stop working.

 

I still have this problem with the new update,