Unreal Engine Issues

UEditorEngine::OnAllPIEInstancesStarted() called prematurely, multiple times, while PIE clients are starting

Context UEditorEngine::OnAllPIEInstancesStarted() is a virtual function that gets called when launching Play-in-Editor. It can be overridden if the game project chooses to introduce a subclass of U ...

GameplayTagQuery AutoDescription not refreshed after GameplayTag redirect on load

FGameplayTagQuery does not refresh its cached AutoDescription after GameplayTag redirects are applied during asset load. As a result, after renaming a GameplayTag and restarting the editor, the Game ...

When Constrain Aspect Ratio is enabled, the display position of DrawDebug rendering becomes misaligned

Display DrawDebugSphere at the DefaultPawn's positionSet bConstrainAspectRatio=true on the DefaultPawn's CameraComponent Setting bConstrainAspectRatio=true in CameraComponent causes DrawDebug renderi ...

Sequencer: Camera blends restore to incorrect view target after Keep State

When a Level Sequence’s Camera Cut track with When Finished = Keep State is played, the “original state” is persisted into the PreAnimatedStorage array inside FPreAnimatedCameraCutStorage. From the ...

Material Analyzer misreports static params for Material Layers

When analyzing materials that use Material Layers, Material Analyzer reports that multiple Material Instances “share the same static parameter array” and therefore recommends reparenting so that onl ...

[Enhanced Input] The action instance data is incorrectly reset when you call "Add mapping context" on the same mapping multiple times

This is somewhat related to [Link Removed] Closed and was brought up by a [Link Removed] Setting the CVar input.bRespectIM ...

Clearcoat material behaves differently between 5.5 and 5.7

Starting with Unreal Engine 5.7, specular reflections on clearcoat Materials are less pronounced. Unreal Engine 5.5 tests performed on //UE5/Release-5.5/, CL: 41545209 ...

The public header file ModelingToolsEditorModeToolkit.h exposes private module definition of ENABLE_STYLUS_SUPPORT

Character unnecessary step down during PHYS_Flying mode

When MovementMode is set to PHYS_Flying, the character may unexpectedly step down by MaxStepHeight when colliding with a wall near a ceiling. This occurs because UCharacterMovementComponent::StepUp ...

Editor ensure in USceneComponent::OnComponentDestroyed during Blueprint compilation GC

An editor-only ensure can trigger during BP compilation when garbage collection cleans up transient components created as part of component replacement. During recompilation, old component instances ...