That night I worked on the project. I made environment consisting of three squares to the effects of steam and automatically opening doors. I wrote a draft came out, then walked around 1am again to the project, do not do it just tested walking and opened the door, and again wrote down the project and after restarting the program error when opening the project but not my map.
It is based on the design of BP FPS, and for that I have your map which I can not open.
I checked the log of the project but all the files are missing it like there I have, I reinstalled the Unreal Engine 4 and still the same problem.link text