Unreal Engine Issues

[Reverb][Regression] - The Reverb Effect in World Settings Does Not Update When Loading New Levels

When loading a new level via the Open Level node in Blueprints, the World Settings do not update the Applied Reverb Effect. When trying to reproduce the issue in 4.25.4, issue did not occur (the r ...

Volumetric Translucent Shadow does not work

Executing r.setres does not render correctly when Orientation of Display is Portrait on Windows PC

This issue will display correctly in Portrait if you don't specify a resolution, but using r.setres will display it incorrectly. ...

Spawnable templates can reference other spawnables and their levels in a sequence

Spawnable templates can reference other spawnables. These references will be unstable due to the nature of spawnables, and the level reference can lead to unexpected behavior.  ...

Crash on adding new element to ChaosCacheCollection if ChaosCacheCollection is open in editor

More ways to reproduce:In Chaos Cache Collection Editor press Add Element button (no matter when you will do this step)If in Step13 from Steps to reproduce you won't place Chaos Cache Collection Edi ...

Missing SmallOSAlloc/Free memory tracking with LLM on iOS

Licensee reports missing memory tracking for LLM on iOS: In Engine/Source/Runtime/Core/Private/HAL/MallocBinned.cpp in SmallOSAlloc, there is a compiler define for IOS and within it there is an LLM ...

Skeletal mesh reduction - Material settings are lost when regenerating the LOD in a mesh with a reduced material section

Following code fixes this issue in FQuadricSkeletalMeshReduction::ReduceSkeletalMesh Section.ChunkedParentSectionIndex = bIsChunkedSection ? CurrentParentSectionIndex : INDEX_NONE; // ...

Curl Noise values on water body actors causes the shore to appear broken

Water is new so I marked this not a regression This is worse in a Lake and River actors, Ocean kinda looks okay but also might need to be looked into ...

Rotate about axis material node can cause Z-fighting in Niagara mesh particles

The rotate about axis material node appears to cause z-fighting in mesh particles if they are scaled in the simulation. ...

iOS/TVos/Mac Compilation Error - Argument List Too Long

Compilations are failing on iOS, tvOS and Mac due to the following clang error: clang: error: unable to exectute command: posix_spawn failed: Argument list too long ...