Build lighting for single stationally light level generates a shadow map in PF_B8G8R8A8 format

UE - Texture - Nov 1, 2024

Texture format override to BGRA8 due to changes in CL-30603716. The following code can restore the previous behavior. void FShadowMapPendingTexture::StartEncoding(ULevel* LightingScenario, ITexture ...

RewindDebugger draws debug capsules with its base location as center

UE - Anim - Oct 31, 2024

Context UE_VLOG macros can be used to capture debug shapes into both a Visual Logger recording and a Rewind Debugger recording. Problem In the Rewind Debugger, the capsule shapes are drawn at an in ...

Float Curve evaluation may yield completely wrong results due to floating-point precision issue

UE - Anim - Runtime - Oct 31, 2024

Note: This is possibly related to [Link Removed]. For some inputs, function UE::Curves::WeightedEvalForTwoKeys() inside file "CurveEvaluation.cpp" can incorrectly return the value of the first key, ...

Debug display of TargetingSelectionTask_AOE with cylinder is unnaturally tilted

UE - Gameplay - Gameplay Ability System - Oct 30, 2024

The following code fixes the tilt : void UTargetingSelectionTask_AOE::DebugDrawBoundingVolume(const FTargetingRequestHandle& TargetingHandle, const FColor& Color, const FOverlapDatum* OverlapDatum) ...

UnrealTraceServer exits when encountering a symlink on Windows

UE - Foundation - Insights - Oct 30, 2024

UnrealTraceServer exits on startup (or when watching a directory) when a watched store directory contains a symlink on Windows. Cause: The std::filesystem::directory_entry::is_directory() call thro ...

Mobile Depth of Field blurry eveywhere

UE - Platform - Mobile - Oct 30, 2024

user reports I investigated the problem throught the frame capture tools and found that on a real device (iPhone 15 Pro in my case), the depth texture for the SunMask pass is not set (a dummy black ...

Invalid access location compressing a BC6h texture in the editor

RAD - Oct 29, 2024

Large texture crashes during Oodle compression with "-stompmalloc". It appears to be an internal Oodle error. Also tested on //UE5/Release-5.5/, CL: 37463908 ...

Depth of Field blur is inconsistent with r.ScreenPercentage == 100 (Dynamic resolution)

UE - Graphics Features - Oct 29, 2024

Depth of Field, with "r.DOF.Recombine.Quality = 0" will adjust the size of the depth in focus based on screen percentage. This might be related to over-fitting from the tile classification, because ...

Cannot export a Datasmith scene to the Unreal Engine project root folder on MacOS.

TM - Interoperability - Oct 29, 2024

This is mac specific. I could do the export normally on Windows with the same Twinmotion CL and UE version (5.5 preview).  It is also a regression specific to 5.5, since I've been able to export a d ...

UE 5.5 delayed Python initialization causes issues

UE - Editor - Workflow Systems - Oct 28, 2024

From this UDN: [Link Removed] The customer reports that this issue did not happen in 5.4. ...