open BP = crash editor

Development Programming & Scripting Blueprint
1

I’ve made a blueprint, then duplicated, and modify only the mesh component in the duplicated blueprint, compiled and saved, all good no errors, I’ve put second blueprint and scene and is working as intended. After I’ve closed the editor and started again, if I open the duplicated blueprint, editor crash with the message below. Original blueprint open and don’t crash the editor. The map where I’ve put duplicated blueprint crash editor also. powerup2BP is the name of the duplicated blueprint, as show in log. Any idea how to fix this?



Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: BlueprintObj->GeneratedClass [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Editor\UnrealEd\Private\Kismet2\Kismet2.cpp] [Line: 542] 
Invalid generated class for powerup2BP

KERNELBASE + 35740 bytes
UE4Editor_Core + 3092349 bytes
UE4Editor_Core + 1597688 bytes
UE4Editor_Core + 1479058 bytes
UE4Editor_UnrealEd + 10034613 bytes
UE4Editor_Engine + 1970481 bytes
UE4Editor_CoreUObject + 240879 bytes
UE4Editor_CoreUObject + 946774 bytes
UE4Editor_CoreUObject + 1054484 bytes
UE4Editor_CoreUObject + 944791 bytes
UE4Editor_CoreUObject + 947419 bytes
UE4Editor_CoreUObject + 1062891 bytes
UE4Editor_CoreUObject + 1460613 bytes
UE4Editor_CoreUObject + 1193007 bytes
UE4Editor_CoreUObject + 1189666 bytes
UE4Editor_CoreUObject + 1193874 bytes
UE4Editor_CoreUObject + 1189666 bytes
UE4Editor_CoreUObject + 1189156 bytes
UE4Editor_CoreUObject + 976397 bytes
UE4Editor_CoreUObject + 1185872 bytes
UE4Editor_CoreUObject + 951800 bytes
UE4Editor_CoreUObject + 1026078 bytes
UE4Editor_CoreUObject + 1460171 bytes
UE4Editor_CoreUObject + 1511826 bytes
UE4Editor_CoreUObject + 1580292 bytes
UE4Editor_ContentBrowser + 1469927 bytes
UE4Editor_ContentBrowser + 1842214 bytes
UE4Editor_ContentBrowser + 1342247 bytes
UE4Editor_ContentBrowser + 1386087 bytes
UE4Editor_ContentBrowser + 1891974 bytes
UE4Editor_ContentBrowser + 1336641 bytes
UE4Editor_ContentBrowser + 1382442 bytes
UE4Editor_ContentBrowser + 1371670 bytes
UE4Editor_ContentBrowser + 1977407 bytes
UE4Editor_ContentBrowser + 1892559 bytes
UE4Editor_Slate + 428894 bytes
UE4Editor_Slate + 157325 bytes
UE4Editor_Slate + 829529 bytes
UE4Editor_Slate + 768779 bytes
UE4Editor_Core + 2484316 bytes
UE4Editor_Core + 2400763 bytes
UE4Editor_Core + 2489275 bytes
UE4Editor_Core + 2387186 bytes
user32 + 9485 bytes
user32 + 9063 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]
2

Hello,
To have a complete and quick help, please do a report on answerhub : https://answers.unrealengine.com/index.html

3

If it helps,

For no reason the other day I had a duplicate Variable randomly spawned in a BP.

I had to delete it, and redo the BP.

Would it be easy to Make a blank BP. Do a quick copy and paste and delete the original BP.

Depends on how complicated it is.

Also, make sure that you do not have a infinite loop because it cast to itself or something simular.

Narg

4

I am super sure there is no infinite loop inside, and all blueprints worked once:) That is what I can’t understand, after I’ve closed the editor and reopened I’ve got that error, if I open the blueprint or the map containing that blueprint. I will try to ask on AnswerHub asap, almost forgot about it:)