Unreal Engine Issues

Editor crashes when setting return value pin to object variable in widget blueprint

Editor crashes when attempting to set an object variable to a return value within widget blueprints. Frequency: 2/2 Crashreporter: [Link Removed] ...

Adding a new component to a parent class breaks child Blueprints

See UDN(308147): [Link Removed] ...

Iris - Ensure in MarkObjectDirty when calling multicast from component owned by bOnlyRelevantToOwner actor

It seems as though the component is in scope for more than one connection, despite its owner only being relevant to one. Enabling Net.Iris.Filtering.ValidateNobSubObjectInScopeWithFilteredOutRootObj ...

[AI] Destroying an actor while using pooled actors with MassActorSpawnerSubsystem causes a nullptr exception crash

If an actor that is used in the pooled actor list of UMassActorSpawnerSubsystem is destroyed, it causes a nullptr exception in UMassActorSpawnerSubsystem::SpawnOrRetrieveFromPool. The subsystem atte ...

Modifying FinstancedStruct (Blueprint structs) properties inside another FInstancedStruct triggers an ensure and properties do not get saved.

There is a bug with Blueprint structs having FInstancedStruct as a property. If you modify the DefaultValues of any property of an FInstancedStruct inside the blueprint struct asset, an ensure will ...

Nested PackedLevel in Duplicated LevelInstance check failure

Assert in EditorEngine.cpp after HotReload

This occurred when I tried to repro an ensure and crash the resulted in [Link Removed]. In the crash group on the Crashreport website I noticed that KimK had the same callstack as this one. She wrot ...

Modifying ShooterGame header file for faster compiling causes crash behavior.

Using bFasterWithoutUnity and MinFilesUsingPrecompiledHeaderOverride, on ShooterGame.Build.Cs results in Engine crash. ...

Crash: Corrupt asset/map data is no longer correctly detected and handled

Corrupted data was previously handled gracefully without crashing, but in 4x14 the same data crashes the editor. ...

LevelSequence Editor consumes input, even if the user last focused the Level Viewport

LevelSequenceEditor has input priority over the Level viewport and other editor modules even though the Level viewport has been the last one selected. An example would be a cut operation. If you ha ...