Substrate SSR reflections are black

UE - Rendering - Features - Shading Models - Dec 17, 2024

Substrate Materials do not use Screen-Space reflections. Instead, they do not have any reflections (indirect specular) on the surface. ...

FName no longer equals FName_None when constructed with a trailing underscore and digits in range of 1-9

UE - Core - Systems - Apr 15, 2025

When an FName is created with a trailing underscore and any number of digits in the range of 1-9 the trailing digits are used as the internal number value for the FName lookup. This results in the F ...

LOD glitch when using Control Rig with Import Skeleton node

UE - CAPT - Control Rig - Aug 26, 2025

In Unreal Engine 5.6 and Main, a glitch occurs when switching between LODs in a character setup that uses a Control Rig to dynamically load the skeleton hierarchy through the Import Skeleton node in ...

Notifies placed on the first frame of a montage using root motion don't fire

UE - Runtime - Animation - Aug 10, 2026

This is a regression in 5.8 caused by 47265321. It's because we now perform the montage update and dispatch the queued notifies via CharacterMovementComponent::TickCharacterPose.  But that all hap ...

Translucent Materials do not work well with Depth of Field

UE - Graphics Features - Apr 10, 2015

Depth of Field do not work well when using a translucent material, even if the material has no opacity set. Image attached as reference. Light brown colored mesh is translucentGray mesh is opaque ...

Collision thickness on landscape does not appear to work

UE - Simulation - Physics - May 27, 2015

Setting the collision thickness for the landscape does not appear to have any effect on any objects colliding with it. Setting the value to a negative or a positive has no effect. ...

Set Material for a DM in the Construction script will result in a crash

UE - Simulation - Physics - Destruction - Jun 3, 2015

Setting a material in a BP construction script after setting a DM will result in a crash. This will render the BP inaccessible once the project reloads. Opening the BP will result in an instant cras ...

Breakpoints in default Pawn class are not triggered in Debug mode

UE - Foundation - Core - Jul 27, 2015

When running the editor through VS debug mode, any breakpoint that is set in the class used as the Default pawn class in world settings will be ignored when playing in editor ...

Crash when trying to change game mode settings

Trying to change game mode settings after restarting the editor will cause the editor to crash. ...

Creating a blueprint from selected components crashes editor if components contain a blueprint with a component

UE - Gameplay - Blueprint - Nov 4, 2015

Frequency: 2/2 Crash Reporter: [Link Removed] Editor crashes if the option: "Convert Selected Components to Blueprint Class" is selected from main editor viewport>Blueprints context menu. This occu ...