Unreal Engine Issues

Ensure triggered inside Range Struct Customization when Property Node is no longer valid (e.g. when editing FFloatRange while FRuntimeFloatCurve editor is visible) [Ref.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

[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successfully avoiding an ensure condition inside FIntervalStructCustomization::SetValue() when its Property Node is no longer valid.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 ...

LevelInstance Property overrides: Niagara properties cannot be overriden

LevelInstance Property overrides are broken when duplicating a LI

Upon light debugging, it seems like the overrides depend on the name of the actors in the LI. The duplicated LI does have FLevelInstanceActorPropertyOverride but the Actor names were not updated upd ...

Build crash when enabling r.CreateShadersOnLoad=1

When "r.CreateShadersOnLoad" is enabled, cooking will crash due to failure to create a shader. This occurs on //UE5/Release-5.5, CL: 41545209 and //UE5/Release-5.6, CL: 45232827 ...

WorldPartitionConvertCommandlet hits an assert when converting a persistent level that contains a sub-level with a landscape

Context: The Window tab allows a user to open the Levels window in order to add a sub-level to a persistent level. For Unreal Engine 5.0 and beyond, World Partition has made the Levels window obsole ...

5.6 Skeletal Meshes with Disabled Sections Flicker in Ray Tracing Scene

Skeletal meshes with disabled mesh sections will flicker in the Hardware Ray Tracing Scene. Also tested on //UE/Release-5.6, CL:45232827 ...

Adding a streamed empty LevelInstance in a WP level will result in an incorrect mapcheck error

This is an edge case that can also be caused when a Level only contains actors were `SupportsExternalPackaging` is false.  This is likely the case for the "empty" level which surely contains a Level ...

TSparseArray NatVis visualizer doesn't work for arrays that use TInlineSparseArrayAllocator

The NatVis visualizer allows many custom Unreal types to be displayed in a helpful manner inside the Visual Studio watch window. One such type is TSparseArray. Under normal circumstances, visualizin ...

net.ReplicateCustomDeltaPropertiesInRepIndexOrder is not respect the cvar for the custom properties

In our project do not use iris and we use a subclass UExtendAbilitySystemComponent derived from UAbilitySystemComponent. In this subclass, there is a FastArray member variable named ExtendActivatabl ...

GAS: FActiveGameplayCueContainer::RemoveCue crash while iterating removals when consecutive Cue tags are conditionally added and the conditional effects removed in ascending order

When removing gameplay effects by tag, if the tag that is being removed has other tags that are dependent on it in a cyclical way an "array out of bounds ' error can be triggered. ...