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 ...

Typo in NaniteRasterizer.usf preventing low tessellation mode at distance

UE - Graphics Features - Nanite - Nov 12, 2025

A typo in a conditional compilation macro in NaniteRasterizer.usf causes code controlling distant tessellation reduction to never be included in final shader code. This means that the low tessellati ...

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 ...

GetStaticRayTracingGeometries doesn't check if mesh has ray tracing disabled

UE - Graphics Features - Ray Tracing - Nov 12, 2025

An ensure is hit for static raytracing geometry because skeletal mesh assets that had ray tracing disabled were not handled in: FSkeletalMeshSceneProxy::GetStaticRayTracingGeometries The concurrent ...

Ensure triggered inside Range Struct Customization when Property Node is no longer valid (e.g. when editing FFloatRange while FRuntimeFloatCurve editor is visible) [Ref. UE-341339]

UE - Editor - UI Systems - Nov 12, 2025

[Link Removed] was fixed by CL 46990575, successfully avoiding an ensure condition inside FIntervalStructCustomization::SetValue() when its Property Node is no longer valid. However, the same proble ...

Mover Plugin: UNavMoverComponent::GetFeetLocationBased() returns incorrect FBasedPosition when using WalkingMode over a Movable floor, making UPathFollowingComponent erroneously detect a blocked move

UE - Gameplay - Player Movement - Mover - Nov 12, 2025

Function UNavMoverComponent::GetFeetLocationBased() on file "NavMoverComponent.cpp" returns an FBasedPosition built from an FRelativeBaseInfo. The "MovementBaseInfo" is read from key "CommonBlackboa ...