Unreal Engine Issues

Translucent materials in the PostMotionBlur pass can cause a flickering viewport artefact when using TAA

There appears to be a bug relating to rendering multiple windows that can trigger under unknown circumstances. It has been reported on rectangle lights in the forums and on PostMotionBlur materials ...

Adding Images: The image header is unrecognized

This issue occurs only on Windows 11 24H2, but it affects all RealityCapture versions on this OS. It is allso not possible to open the images with the Windows Photos App.  ...

ApplyLimits AnimGraph Node has incorrect functionality

In AnimNode_ApplyLimits.cpp the inputs for the ConstrainAngularRange function are going to the wrong rotator values. The XYZ of the node's input vec3 is being stored in YPR of the clamped rotator, w ...

Fix up IOS errors calling UI API from non-UI threads

[CrashReport]UnrealEditor-Bridge!void TSparseArray<TSetElement<TTuple<FString,AStaticMeshActor *> >,TSparseArrayAllocator<TSizedDefaultAllocator<32>,FDefaultBitArrayAllocator> >::Empty(int) [SparseArray.h:366]

Generated from CrashReporter Error Message: Assertion failed: IsValid() [File:D:\build\++UE5\Sync\LocalInstall\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h] [Line: 1008] ...

Foliage is placed on LevelInstanceActor does not follow basecomponent when the LevelInstanceActor moves

Foliage usually follows when the Transform of the placed ground or floor changes. However, if the ground or floor is a Level Instance Actor, it will not follow. The cause is in the code below. voi ...

AO Decals not working when using Lumen

When lumen enabled, and with static lighting disabled, we expect the Material AO to contribute to diffuse lighting occlusion. However AO from decals does not have any effect. ...

GPU Timeout when using a large scale Landscape and Water Body Ocean

Regression: Tested in //UE5/Release-5.0, this issue does not occur so regression is yes. The GPU Timeout only occurs in UE5/Release-5.1, as recreating this issue in previous versions of the editor ...

Transform variable values in a Control Rig cannot be copied or pasted onto

When trying to copy/paste values from anything to a Transform variable's values, it will not happen. Additionally, you cannot copy/paste anything from a Transform variable. I repro'd this 3/3 times. ...

Custom Water Body does not work with its own Distance Culing

WaterBodyCustom seems not to work with Distance Culling settings on its own actor, either Draw Distance/Never Distance Cull or Allow Cull Distance Volume.  It only can be controlled by the CullingD ...