HLOD build crashes when GroupActor is present

UE - World Creation - Worldbuilding Tools - HLOD - May 24, 2022

The licensee shared information that a Null check on the following Actor can be used as a workaround. static TArray<UActorComponent*> GatherHLODRelevantComponents(const TArray<AActor*>& InSourceAct ...

Crash in TMap struct deserializer

UE - Foundation - Core - Sep 20, 2016

When deserializing a TMap<FString, FString> with the JsonStructDeserializer, the Engine crashes. ...

Changing TeleportRotationThreshold or TeleportDistanceThreshold at runtime fails to change teleport settings

UE - Simulation - Physics - Character - Jan 6, 2017

USkeletalMeshComponent::USkeletalMeshComponent() caches off the teleport values for later use and then ignores the exposed values entirely. This should not be the case. We either need to detect chan ...

Bright mesh outlines using Temporal AA with Gaussian Blur DOF

UE - Graphics Features - Feb 17, 2017

Since the last engine merge in FN Main, any mesh that silhouettes against DOF will produce a bright, halo like effect on the outside edge. The further away the background is from the silhouetted mes ...

Crash when moving actor on viewport with HierarchicalInstancedStaticMeshComponent.

UE - Gameplay - Components - Aug 28, 2017

Create ActorBP has StaticMesh is not assigned to HierarchicalInstancedStaticMeshComponent. Place this actor on the level, and bind the StaticMesh from the Detail tab and add the appropriate Instance ...

Laser scan import: Importing E57 provides the "Operation failed" error

RC - Editor - Aug 21, 2024

Data: [Link Removed] I also tested other E57 files, and they were possible to import. This one is from RTC360.  [Image Removed] ...

Kerning Issues with Non-Default Fonts (Helvetica) in UMG

UE - Editor - UI Systems - Dec 17, 2015

Licensee is reporting that when a font is scaled in a UMG, the smaller the font gets the more the Kerning between certain letters decreases to the point of overlap. This is not as obvious in a View ...

Cannot Delete Event Dispatcher inside of a child blueprint when the parent has an event dispatcher as well

UE - Gameplay - Blueprint - Apr 2, 2015

If the user creates two blueprints and parents one to the other and then creates 3 event dispatchers in total between the two in an alternating method it will cause and error and the event dispatch ...

Smoothing landscape removes landscape collision in smoothed areas

UE - LD & Modeling - Terrain - Landscape - Apr 27, 2016

Smoothing user's landscape breaks collision, causing player to fall through the ground at points that have been smoothed. Resampling landscape fixes the error until smooth tool is used again. Regr ...

Viewport has graphical glitch while editing but not in PIE

Tools - Feb 6, 2015

User has a project that the viewport has gotten corrupted. The icons are now no longer camera facing and are facing in the positive y axis. The sun disc and sky are blurred. When PIE everything rend ...