Attempting to override timeline function in child blueprint crashes editor

UE - Gameplay - Blueprint - Sep 24, 2015

Attempting to override a timeline within a child blueprint causes the editor to crash. Frequency: 4/4 Crashreporter: [Link Removed] ...

Crash when compiling for instrumentation after adding an exec pin to a collapsed graph

UE - Gameplay - Blueprint - Aug 15, 2016

Editor crashes when compiling for instrumentation after adding an exec pin to the collapsed graph. This only occurs if the exec pin was added through a drag and drop method. Adding the exec pin to ...

Crash upon editing a GameplayTagQuery inside of a DataAsset

UE - Gameplay - Oct 27, 2017

When a GameplayTagQuery variable is edited from inside of a DataAsset, the editor crashes when the changes are saved. This could be related to a bug that was fixed previously: [Link Removed] Regres ...

Crash occur when using AddSpawnableFromClass with BlueprintGeneratedClass specified

UE - Anim - Sequencer - Aug 13, 2019

BlueprintGeneratedClass is not based UBleupint. So the following code is failed. bool UActorFactoryBlueprint::PreSpawnActor( UObject* Asset, FTransform& InOutLocation) { UBlueprint* Blueprint = ...

OBJ file causes a `Debug Assertion Failed!` error

UE - Editor - Content Pipeline - Import and Export - Dec 23, 2015

When importing this users file of an OBJ asset there will be an assertion failed error. On the import message if you hit "ignore" until the mesh imports all will work in 4.10 or later. This was no ...

Unreal crash on STEP file datasmith import

UE - Editor - Content Pipeline - Datasmith - Importer - May 9, 2018

Unreal Crash on .STEP file using the  Datasmith importer. Works fine in 4.19.2  ...

Crash while closing Create Blank New Blueprint window after attempting to name blueprint the same name as another blueprint

UE - Gameplay - Blueprint - Jul 27, 2016

Crash while closing Create Blank New Blueprint window after attempting to name blueprint the same name as another blueprint. This crash only occurs when attempting to close the window using the "X" ...

User Defined Struct causing crash due to accessing freed memory when using Stompmalloc

UE - Gameplay - Feb 14, 2019

A licensee has reported that Custom Structs can cause a crash when using StompMalloc under certain situations. Regression?: No This occurs in 4.20 ...

Crash when reverting to the default material in the static mesh editor

Tools - Apr 17, 2017

The editor crashes when attempting to revert the material on the cube back to default which is the World Grid Material. The cube is already set to WorldGridMaterial so I am not sure why the arrow ...

Landscape Visibility Tool crashes editor

UE - LD & Modeling - Terrain - Landscape - Feb 20, 2015

Editor crashes when landscape visibility tool is used on landscape. Frequency: 2/2 Crash Reporter: [Link Removed] ...