Crashin while loading my map


First: sorry for my english. Everytime, I try to load my projekt, the editor crash. So, I delete my (only one) map, and the editor comes up with every other stuff like materials, meshs and so one. I copy the last five maps out of my backup-Folder in the map-Folder. The copys are from the time, when everything went fine. But everytime, I try to load one of these maps from the editorwindow or from the Launcher, the Engine crashs. Here is the errortext:


Access violation - code c0000005 (first/second chance not available)

UE4Editor_Core + 984563 bytes
UE4Editor_CoreUObject + 1062994 bytes
UE4Editor_CoreUObject + 1460613 bytes
UE4Editor_UnrealEd + 2768012 bytes
UE4Editor_UnrealEd + 2700861 bytes
UE4Editor_UnrealEd + 2612749 bytes
UE4Editor_UnrealEd + 6316416 bytes
UE4Editor_UnrealEd + 3168772 bytes
UE4Editor_UnrealEd + 3167944 bytes
UE4Editor_UnrealEd + 6555369 bytes
UE4Editor_UnrealEd + 6310846 bytes
UE4Editor!GuardedMain() + 285 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:123]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Can I do anything to get my work back?

OK, I have it. I found an old Autosave, and the diferent was “only” one mesh. When I try to load this mesh, the editor crash again. So I just delete this mesh and get my rest of the map. I think, this topic can be closed… - Thanks…