**I’ve been having this issue with a few of my maps that causes the engine to crash if I reopen a map. I’ve been reading up on it, and it is caused by event dispatchers. SO, after hours of trawling through all of my blueprints, I have figured out this cause of all my distress.
Within the Level Blueprint, I have called 4 different event dispatchers, that cause 2 button to unlock all doors and 2 buttons to lock all doors, as shown below.
I can delete the 2nd one of each of them, however if I try and delete the top ones, the engine crashes, and this error is shown:**
MachineId:780C5B5B4496F6AD1EC672A8960FBB26
EpicAccountId:44926f19a11140d09c783185c17afd07
Access violation - code c0000005 (first/second chance not available)
UE4Editor_BlueprintGraph + 1035469 bytes
UE4Editor_BlueprintGraph + 839899 bytes
UE4Editor_UnrealEd + 9644094 bytes
UE4Editor_Kismet + 948096 bytes
UE4Editor_Kismet + 992849 bytes
UE4Editor_Kismet + 1007926 bytes
UE4Editor_Slate + 525779 bytes
UE4Editor_Slate + 825548 bytes
UE4Editor_GraphEditor + 1659343 bytes
UE4Editor_Slate + 429026 bytes
UE4Editor_Slate + 155469 bytes
UE4Editor_Slate + 161930 bytes
UE4Editor_Slate + 827913 bytes
UE4Editor_Slate + 766152 bytes
UE4Editor_Core + 2483908 bytes
UE4Editor_Core + 2400763 bytes
UE4Editor_Core + 2489275 bytes
UE4Editor_Core + 2387186 bytes
user32 + 105425 bytes
user32 + 104666 bytes
UE4Editor_Core + 2490486 bytes
UE4Editor!FEngineLoop::Tick() + 3434 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:2193]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:131]
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]
Is there any way I can remove these, or remove the level blueprint?