Unreal Engine Issues
Unreal Engine Issues
Saving a new material after creating a landscape crashes the editor
UE - Graphics Features - Dec 27, 2016This crash occurs when you create a landscape, then create and save a material. Note The crash does not occur unless a landscape was created first I came across a couple of crashes revolving around ...
Exposed Niagara User Parameter Enums are displayed as Integers
UE - Niagara - Sep 29, 2022(Note: all enums seem to fail when exposed as a user parameter and changing the exposed int does not impact the result of the simulation) Add a rigid mesh collision query di to a scratch module pe ...
GPU crash dump triggered with Intel H/HX processors
TM - Rendering - Oct 3, 2024Some users have recently reported 'GPU crash dump Triggered' crashes launching, importing, or performing simple actions. Communicating with one user, general GPU TS has not helped(check for OS/drive ...
Large World Coordinates appears to not work for Niagara Mesh Particles
UE - Graphics Features - Nov 28, 2024When a Niagara System is placed at around 10^8 units away from the origin, the movements of the mesh particles aren't smooth as expected, but jumpy. These particles behave as if they are using a flo ...
Crash when using Property Access node on Animation Blueprint (repro based on Lyra Starter Game animation layers)
UE - Runtime - Animation - Jan 24, 2024When using the Property Access node on Animation Blueprints to gain performance by better exploring parallel processing, it is possible that the underlying accessed property or any intermediate acce ...
UMG Designer preview: Incorrect resolution on Samsung s8 and s9
UE - Editor - UI Systems - Jul 30, 2018"By default, the device profile for android_high (which is used by phones such as the galaxy s8 and s9) gives a scale factor of 1.0 resulting in 1280x720. When choosing a ~2:1 device such as the gal ...
WorldCoordinate3Way produces Incorrect Axis Lerps
UE - Graphics Features - May 18, 2016The Material Function WorldCoordinate3Way seems to incorrectly perform the Lerps from the axis contributions of the normals. An example is show here, with the left objects using the version that com ...
start/end state notify events can be sent every frame on dedicated server builds
UE - Characters - Animation - Aug 1, 2025The problem is that UCharacterMovementComponent::MoveAutonomous can tick the anim instance and dispatch notifies outside of the regular skeletal mesh component tick. But when MoveAutonomous calls T ...
Scalebox scaling won't update if child size changes with global invalidation enabled
UE - AI Workflows - UI Systems - Slate - Jul 17, 2024When global invalidation is enabled, Scale Boxes don't react properly to changes in the size of their contents. Licensees have worked around this by updating SScaleBox::OnArrangeChildren:// This sca ...
In the GameUserSettings class, Landscape quality is not taken into account by GetOverallScalabilityLevel, but is changed by SetOverallScalabilityLevel.
UE - Gameplay - Oct 17, 2025Context: GameUserSettings stores user settings for a game, for example graphics and sound settings. The Scalability settings provide a way for to adjust the quality of various features in order to m ...