incorrect virtual texture shader code(in FinalizeVirtualTextureFeedback) on Mobile forward platform

UE - Graphics Features - Mar 15, 2021

in the function FinalizeVirtualTextureFeedback, the micro "USE_DBUFFER && MATERIALDECALRESPONSEMASK" returns true on mobile forward, while there is no DBUFFER on Mobile forward obviously. This takes ...

SingleLayerWater is rendering brighter shallow water with fog

UE - Graphics Features - Jul 12, 2021

Shallow water areas in scenes with exponential height fog will be brighter than they should be. Possibly due to the fog being applied twice in the SingleLayerWater shading model. ...

Cannot delete objects selected with lasso tool in foliage mode

UE - World Creation - Worldbuilding Tools - Foliage - May 7, 2015

Actors selected with the foliage lasso tool cannot be deleted. User must select individual assets or use another method to delete actors. ...

Clicking a button in UMG stops all tilt information

UE - Editor - UI Systems - Nov 14, 2014

Tilt information is no longer taken after clicking on a button in UMG. The tilt information goes to all zeros. That is until the user clicks else where at which point the device will then start regi ...

Rifles are offset in Display 1.15 when opening Content Examples Animation map

UE - Gameplay - Oct 28, 2016

REGRESSION: YesWORKING: 3172292 (4.13.2)BROKEN: 3177600 (4.14) In the Content Examples Animation level, at Display 1.15, the rifles are offset from the character's hands for two of the skeletal mes ...

Moving RecastNavMesh in the level and then toggling Display settings causes the navmesh to move in the level

UE - AI - Apr 2, 2018

If the user moves the RecastNavMesh actor in the level, the navmesh will be offset each time they change a Display setting in the Details panel. ...

USplineComponent::FindLocationClosestToWorldLocation does not function correctly with non-uniform scale

UE - Framework - Components - Jul 19, 2022

Licensee reports incorrect results with FindLocationClosestToWorldLocation when used with non-uniformly scaled spline components. ...

Synthetic benchmark is affected by Scalability Settings

UE - Rendering Architecture - RHI - Feb 19, 2025

Sumo Digital Ltd. has reported that the synthetic benchmark has skewed GPUIndex scores when changing graphics scalability settings (i.e. r.LumenScreenProbeGather.DownsampleFactor). They are currentl ...

Crash at compile time when using a VariableSet node with a local variable created by pasting a private property

UE - Framework - Blueprint - Oct 7, 2025

When a property is created in this way, a local variable with a Private flag is generated. Since such a variable is generally not desirable, it would be better to remove the Private flag upon pastin ...

Project Crashes on Open when Implementing An Interface and Its Duplicate

UE - Gameplay - Blueprint - Apr 25, 2016

The linked project crashes on open after attempting to implement an interface and a duplicate of that same interface with different function names. This has not been reproduced in a clean project, h ...