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Crash From Linked BPs

Hey Guys,

So I received this crash in the past and it's definitely gotten better in subsequent builds of the engine however it still persists but now I'm starting to notice a similarity with the issue. I was working with TJ Ballard on an issue having to do with my MainMenu Blueprint where I now have a MainMenu BP, that has ChildActorComponents that reference my MainMenuItem BP for each item in the menu.

I am going to switch these over to just using interfaces and have no reference to either BP to hopefully fix this, but what I've noticed is if I have my MainMenuItem BP open and the MainMenu BP open at the same time, I get the crash from below. If I have just my MainMenuItem BP open and compile it, it's fine. Then I can move onto re-compiling/saving the MainMenu BP from there. So it is appearing to be and I'm not 100% sure but I think it's only conflicting when the BPs with dependencies are open at the same time.

EDIT: Okay, doesn't seem to be affected by the top-most BP, but the base class MainMenuItem if compiled with others opened did crash it. I also noticed this with other BPs in the past that the crashing is more affected by attempting to compile the base BP's than the ones that rely or use them. I also have CastTo as well as have components that represent those MainMenuItems so I'm going to eliminate any dependencies and if I have variables that store those types, I'll store a more generic native type such as Actor and use an interface to get access to it. I should be able to do that without them losing any features. I'll let you know how that goes but try out what I mentioned above and if that doesn't work, I'll give you access to my BPs that are failing on a pm on the forums. Thanks again!

Hope this helps!

Assertion failed: ((UObject*)ContainerPtr)->IsA((UClass*)GetOuter()) [File:D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Source\Runtime\CoreUObject\Public\UObject\UnrealType.h] [Line: 351] 'MainMenuItem_C_4' is of class 'MainMenuItem_C' however property 'BoolProperty_2724' belongs to class 'TRASHCLASS_MainMenuItem_460' Stack: FWindowsPlatformStackWalk::StackWalkAndDump() 0x46ce5896 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\core\private\windows\windowsplatformstackwalk.cpp:177] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-Core.dll] FDebug::AssertFailed() 0x46b84535 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\core\private\misc\outputdevice.cpp:203] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-Core.dll] UObject::execInstanceVariable() 0x46876c7a + 320 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:931] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-CoreUObject.dll] UObject::ProcessContextOpcode() 0x468591c2 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1388] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-CoreUObject.dll] UObject::execLetBool() 0x468771d4 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1294] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-CoreUObject.dll] UObject::ProcessInternal() 0x4685a54f + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:577] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-CoreUObject.dll] UFunction::Invoke() 0x46785c84 + 15 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\coreuobject\private\uobject\class.cpp:3590] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-CoreUObject.dll] UObject::ProcessEvent() 0x46859d80 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:888] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-CoreUObject.dll] AActor::ProcessEvent() 0x3953bcb1 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\engine\private\actor.cpp:621] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-Engine.dll] AActor::ExecuteConstruction() 0x3951333d + 22 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\engine\private\actorconstruction.cpp:360] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-Engine.dll] AActor::RerunConstructionScripts() 0x39548d13 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\engine\private\actorconstruction.cpp:263] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-Engine.dll] AActor::PostEditChangeProperty() 0x39538f86 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\engine\private\actoreditor.cpp:60] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-Engine.dll] UObject::PostEditChange() 0x46806769 + 0 bytes [File=d:\unreal engine 4\source\unrealengine-4.4.3-release\engine\source\runtime\coreuobject\private\uobject\obj.cpp:204] [in D:\Unreal Engine 4\Source\UnrealEngine-4.4.3-release\Engine\Binaries\Win64\UE4Editor-CoreUObject.dll] FBlueprintEditorUtils::PostEditChangeBlueprintActors() 0x3df96f67 + 0 bytes [File=d:\unreal engine 4\source\unrealengine

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asked Sep 25 '14 at 07:52 PM in Bug Reports

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MC Stryker
453 22 37 48

avatar image TJ V ♦♦ STAFF Sep 26 '14 at 06:43 PM

Hi MC Stryker,

Could you also post your LOG and DMP files?

avatar image MC Stryker Sep 26 '14 at 08:56 PM

Sure TJ! What folder are they stored in?

avatar image TJ V ♦♦ STAFF Sep 29 '14 at 01:34 PM

.LOG and .DMP files are in: [project]\Saved\Logs folder

avatar image MC Stryker Sep 29 '14 at 07:42 PM

Hi TJ! Hope you had a good weekend. So here is the link to the logs...


I've had a ton of random crashes since then so I matched up the timestamp of my post to the closest dmp and log files. I think the dmp included was at a later time but was the next one to follow so I threw it in. If you want me to get the dmp from the time before that one, let me know but the log is marked 7:45pm on the 25th so that should be the one from that time.

Thanks TJ!

avatar image MC Stryker Oct 04 '14 at 09:52 PM

Hi Andrew. I can see you posted an answer to this question but it is not showing in my internet browser. I can read the answer from my email and you are saying that there have been subsequent version updates since. I'm not sure if I received an answer you posted to another question but for this one, I am using version 4.4.3 which is the most recent version number so I am guessing there is a bug with answer hub and I am receiving your answer from another post.

avatar image TJ V ♦♦ STAFF Oct 06 '14 at 01:31 PM

Hi MC Stryker,

Sorry about that. Just ignore that comment, I deleted it. Some of our team was going through backlogged issues and somehow yours got hit.

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Thanks TJ! Sorry about the delayed response. For the time being, let's call this resolved for your tracking purposes since I've upgraded to 4.5 and if I see it again, we can simply re-open the thread. Hope all is well buddy.

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answered Oct 15 '14 at 09:24 PM

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MC Stryker
453 22 37 48

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