Unreal Engine Issues

Physics enabled Child Actor components that spawn with with a delay, always spawns at world origin

Physics enabled Child Actor components that spawn with with a delay, always spawns at world origin **This is a regression. It was working in 4.11.2 Could also be related to: [Link Removed] User D ...

Crash when using StaticDuplicateObject with mismathced Source and Destination class types

Starting in Unreal Engine 5.4, StaticDuplicateObject internally switched to using Unversioned Property Serialization (UPS) for performance reasons. However, UPS assumes the source and destination ob ...

Editor crash when adding mesh renderer elements in Niagara

When adding multiple meshes to a Niagara Mesh Renderer Module, a check() will be triggered due to a mismatch in the number of Widgets and the number of Tooltip Widgets. ...

Add Submix Effect Blueprint Does Not Have Any Effect

Adding a second effect to the Submix Effect Chain on a Submix works as expected, but when trying to add a Submix Effect via Blueprint, there is no effect.  This also applies to "Add Master Submix Ef ...

GAS: Removing an AttributeSet followed by removing an active GameplayEffect results in client crash

Gameplay Ability System Standalone: Removing an attribute set and then removing an active gameplay effect that has a modifier for an attribute from that set results in a crash. Currently, one must ...

An ensure is triggered when a StaticMesh is set inside a StaticMeshComponent on an actor, and another actor references the static mesh actor from two child actor components.

There is an issue when setting a Static Mesh inside a blueprint that it is referenced by another blueprint with more than one child actor. An ensure is triggered inside the engine, and there is a ...

[CrashReport] UnrealEditor-AnimGraph!UAnimGraphNode_Base::GetAnimBlueprint() [AnimGraphNode_Base.h:306]

Generated from CrashReporter ...

"StaticFindFirstObject: Ambiguous object name" on delegates with timelines in packed level actors

Geometry Collections built with "Use Root Proxies" rendering/transform positions ignore the original root node rotation and can lead to unexpected behaviors

Geometry Collections (GC) built with "Use Root Proxies" rendering/transform positions ignore the original root node rotation and can lead to unexpected behaviors. If the root node of the GC was rot ...

Regression: Crash when saving the level blueprint of a world-partition map containing any node with an unconnected input pin of type "Gameplay Attribute Structure"

In UE 5.5, when the user attempts to save the level blueprint of a world-partition map, the Editor crashes if the BP contains any node with an input pin of type "Gameplay Attribute Structure", as lo ...