Unreal Engine Issues

Volumetric Translucent Shadow does not work

Async Task nodes placed in editor only modules should not issue a warning if the proxy class is set to something in the game module

Because the proxy class is set to something within the game module, no warning is placed on the node as the outer package ends up being a valid Runtime module. This should actually be a warning in ...

Crash when using AnimBudgetAllocator

In the AnimNode_Slot code, It seems that update() and evaluate() should be called by following order because in TickAnimation step, we need to make MontageEvaluateData valid.SkeletalMeshComponent::U ...

Custom Primitive Data are not (fully) functional with Instanced Static Mesh components

If the ISM component is not in a blueprint, but added directly inside the level, the CPD works. If the CPD value is set from a construction script through either the Default or Transient function, i ...

CachedMaxDrawDistance value are not updated by CullDistanceVolume in persistent Level

in PIE, RerunConstructionScript() is executed and actor's CachedMaxDrawDistance is updated as expected. in packaged game, RerunConstructionScript() is not executed  so, CullDistanceVolume is not u ...

Window to select Skeletal Mesh does not pop up when editing a new IK asset

When opening a new IK rig, the window that prompts the user to select a skeletal mesh does not open immediately. However, a skeletal mesh can still be selected in the details panel in the IK window. ...

[Audio Analysis][Ensure] - Sound Submix Spectral Analyzer Delegate Throws Ensure when Analysis Started Before the Delegate is Added

Hit the following Ensure when trying to use the Spectrum Analyser. Also hit this in 4.26 so it doesn't appear to be a regression. Occurs with any of the following Band Settings or when creating you ...

Metahuman Hair Physics becomes jittery when 32x Antialiasing is enabled in MRQ

Enabling 32x AntiAliasing on an MRQ causes metahuman hair physics to become twitchy in the image sequence output.  ...

[MetaSounds]- Attemping to copy and paste inputs between graphs can cause nodes with duplicate pins

Video example: [Link Removed] Occurs in 5.2 as well as 5.2. ...

Atmosphere Sunlight shafts, artifacts, for both cascaded and virtual shadow maps.

Very large objects casting dynamic shadows on the sky atmosphere can lead to flickering (cascaded shadow maps) or square patterns (virtual shadow maps). ...