Unreal Engine Issues

GameFeature Plugins do not chunk as expected when using PrimaryAssetLabels

There is some unexpected behaviour around GameFeature Plugins (GFPs) when packaging with chunking enabled most noticeable when using PrimaryAssetLabels (PALs). Firstly, PrimaryAssetLabels do not ap ...

Blueprint improperly marked dirty when it contains a latent node with a byte enum

In UE 5.4, when deleting actors in our levels, some blueprints will be mark dirty despite not having changed. We traced that down to FAssetRenameManager::CheckPackageForSoftObjectReferences. The af ...

Property Editors fail to select assets within paths containing valid non-alphanumeric characters

Property Editors for asset types allow you to drag assets from the Content Browser into them, or to make a selection using an Asset Picker widget. Some examples would be selecting Static Meshes or M ...

SingleLayerWater Material crashes when sampling SceneTexture:CustomStencil.

There is a texture mismatch between the expected texture samplers and actual texture samplers for SingleLayerWater materials that use the Material Function StencilMaskCompare. Also tested on UE5.5, ...

[Perforce Integration] Duplicate asset, renamed to match deleted parent, results in undesired marked deletion of duplicate asset in Perforce

[Data Table] Mitigate column data bloat to allow for better visualization

(Pulled from associated UDN) Data Table quality of life suggestion Data tables are one of the more useful asset types for managing 'big data' in the engine. Problem is, the spreadsheet view, which ...

UGeometryCollectionComponent::EventDispatcher gets registered for events twice what can result in duplicate collision events being fired

UGeometryCollectionComponent::EventDispatcher gets registered for events twice, once in UGeometryCollectionComponent::RegisterForEvents() and again in UChaosGameplayEventDispatcher::OnRegister(). Th ...

FindTextInLocalizationTable can't find a translation when entries have the same values on both languages

FindTextInLocalizationTable can't find a translation to an entry when the translation is the same as the looked up key because FTextLocalizationManager::DisplayStringLookupTable don't keep entries t ...

Iris - Fast Array ItemMap is empty in PostReplicatedAdd

With Iris enabled, the ItemMap is populated correctly only on the next frame, but it is empty during the callback. This differs from the behavior of the current system, where the ItemMap is populat ...

Some Niagara FX does not show up in MovieSceneCapture when AgeUpdateMode is DesiredAgeNoSeek

CL23957356 changes how to calculate FrameOffset in FNiagaraSystemUpdateDesiredAgeExecutionToken::Execute(). After this change, DesiredAge + FrameOffset could be 0.0 for some a couple of initial fram ...