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Common crash, any way to debug or fix?

I’ve done searches for similar bugs and have found several that look similar, is there any way to debug blueprints that are doing bad things on a deeper level?

[2015.08.07-23.46.06:522][467]LogWindows: === Critical error: ===
Assertion failed: ((UObject*)ContainerPtr)->IsA((UClass*)GetOuter()) [File:E:\Unreal Engine\Unreal Engine\Github\UnrealEngine\Engine\Source\Runtime\CoreUObject\Public\UObject\UnrealType.h] [Line: 304]
‘NPCanimBlueprint_C_1’ is of class ‘NPCanimBlueprint_C’ however property ‘StructProperty_398’ belongs to class ‘TRASHCLASS_CharacterAnimationBP_178’

I’m sure it’s somehow still referencing something that was deleted, but the NPCanimBlueprint is derived from a base character class that seems to be throwing the crash.

KERNELBASE.dll {0x00007ff949ef8b9c} + 0 bytes
UE4Editor-Core.dll!FOutputDeviceWindowsError::Serialize() {0x00007ff938fc74ef} + 0 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Core.dll!FOutputDevice::Logf__VA() {0x00007ff938e80bc8} + 159 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Core.dll!FDebug::AssertFailed() {0x00007ff938e51a32} + 65 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Engine.dll!UAnimInstance::InitializeAnimation() {0x00007ff923b81ef0} + 869 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Engine.dll!USkeletalMeshComponent::InitializeAnimScriptInstance() {0x00007ff923d2ebba} + 8 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Engine.dll!USkeletalMeshComponent::InitAnim() {0x00007ff923d2d65a} + 0 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Engine.dll!USkeletalMeshComponent::OnRegister() {0x00007ff923d3294b} + 0 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Engine.dll!UActorComponent::ExecuteRegisterEvents() {0x00007ff923c3d214} + 0 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Engine.dll!UActorComponent::RegisterComponentWithWorld() {0x00007ff923c67ded} + 0 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou
UE4Editor-Engine.dll!FPreviewScene::AddComponent() {0x00007ff923641da5} + 0 bytes e:\unreal engine\unreal engine\github\unrealengine\engine\sou