I have construct 2 r178. When I open up any Construct 2 file then it does not allow me to edit anything in my layout. I had opened up a file which was for construct 2 personal or business license, then i closed it and opened one on the provided examples file which is meant for free license. But still it didn't allow me to add objects or do anything. Then I downloaded other versions of construct 2(r179 and r180) but still the same. I also reinstalled construct 2 on other drives but still no change. A pattern appeared on top of the Layout editor. You can see below what happened to my editor. I am using the free version of construct 2 r178.