ScreenshotCapturedDelegate is never called in HDR

UE - Platform - Console - Nov 21, 2025

In UGameViewportClient::ProcessScreenShots, when bHdrEnabled is true, the Bitmap array is never filled (the capture code uses BitmapHDR), so ScreenshotCapturedDelegate is never called for any custom ...

same PhysicsAsset refresh multi times when modify multi SkeletalBodySetup properties in same PhysAsset

UE - Anim - Gameplay - Nov 20, 2025

USkeletalBodySetup::PostEditChangeProperty will call OwningPhysAsset->RefreshPhysicsAssetChange(), if I modify many SkeletalBodySetup properties in same PhysAsset, will cause call OwningPhysAsset-> ...

[AI] SmartObjectPersistentCollection produces errors during Map Validation

UE - AI - SmartObject - Nov 18, 2025

SmartObjectPersistentCollection in 5.6 and later now give errors when the map validator runs due to referencing spatially loaded actors. This was working per licensee in 5.5. There was a change from ...

Control Rig Box Selection Innacurate

UE - Anim - Rigging - Control Rig - Nov 17, 2025

When useing marquee select on controls in the rig, their on screen size determines how likely they are to be included in the selection which isn't a reliable enough method for animators. Our workaro ...

Crash at Skeleton Remapping

UE - Anim - Runtime - Nov 14, 2025

The details are in the EPS : [Link Removed] ...

Missing UV Clamping or Clear in SunAlphaPS_Mobile

UE - Platform - Mobile - Nov 13, 2025

In: void SunAlphaPS_Mobile( float2 InUVs[8] : TEXCOORD0, in FStereoPSInput StereoInput, out HALF_TYPE OutColor : SV_Target0 ) { OutColor =  SunUnBias(SunShaftAndDofTexture.Sample(SunShaftAndDo ...

Input Touch Hold trigger fails to reset, unlike Mouse Hold (using Enhanced Input Context)

UE - Gameplay - Input - Nov 13, 2025

When using the Enhanced Input Context, the Input Touch Hold trigger does not reset correctly after releasing a touch input. Unlike Mouse Hold, which keeps firing Canceled events as expected, Input T ...

Mutable bake instance overwrite instead increments

UE - Anim - Mutable - Nov 13, 2025

We are using Mutable and right now we can't overwrite already baked SK instances. This occurs when, we have a set variation for a character and we address a feedback on one of the used skeletal mesh ...

Content is Missing from Cook and indeterminism: StaticMeshComponents in Blueprints that copy data into themselves from StaticMesh have indeterminism due to StaticMesh not yet finished loading, postloading, or building

UE - Foundation - Nov 12, 2025

Content is Missing from Cook warnings are warnings reported at the end of cook phase of a project's data build. They report that data used by a cooked package will not be available at runtime. This ...

Build crash when enabling r.CreateShadersOnLoad=1

UE - Rendering Architecture - Shaders - Nov 10, 2025

When "r.CreateShadersOnLoad" is enabled, cooking will crash due to failure to create a shader. This occurs on //UE5/Release-5.5, CL: 41545209 and //UE5/Release-5.6, CL: 45232827 ...