Crash after deleting Editor Utility Widget and accessing it from Window menu

Tools - Feb 25, 2019

Crash after deleting Editor Utility Widget and accessing from Window menu ...

Crashes after destroying a skeletal mesh attached via socket name (not bone name), the destroyed mesh remains welded.

UE - Simulation - Physics - Jul 18, 2025

On welding physics bodies during primitive component attachment, UPrimitiveComponent::WeldToImplementation() calls GetRootWelded() and then GetBodyInstance() on the returned root. This searches by b ...

Crash when setting a bookmark after going live with Multi-User Editing

UE - Virtual Production - Apr 22, 2019

When using Steam VR in combination with the Multi-User Editing plugin and the Virtual Production Utilities plugin the engine crashes when adding a bookmark while a server is running. ...

Crash when Deleting Variable from Blueprint Struct

UE - Gameplay - May 23, 2019

The Editor will crash when attempting to delete a variable from a Blueprint struct. This crash does not seem to happen if save the map with the actor in it. ...

[XBox] -Switching to very high sample rate audio device on XBox causes crash

UE - Audio - Nov 3, 2022

When switching to an audio device with an unsupportedly high sample rate on XBox, XAudio2System->CreateMasteringVoice will crash. Ideally, it would give a warning instead and swap to the null render ...

Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited.

UE - Gameplay - Blueprint - Jan 8, 2019

Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited. ...

Project fails to package nativized const reference parameter

UE - Gameplay - Nov 17, 2017

Overriding a BlueprintNativeEvent function with a const reference parameter in blueprints causes the project to fail to package if the blueprint is nativized. Note: This only occurs if the function ...

Crash when Pasting a Gameplay Tag variable setter into a level Blueprint

UE - Gameplay - Blueprint Editor - Nov 4, 2019

Copying a gameplay tag variable setter from a blueprint into a level blueprint fails an assert in UGameplayTagsManager::GetCategoriesMetaFromField. ...

GeometryCollectionActor SetSimulatePhysics false does not stop Physics Simulation

UE - Simulation - Visual - Nov 28, 2024

If the GeometryCollectionActor (GCA) is simulating physics, calling SetSimulatePhysics(false) does not stop the simulation. If the simulation is paused, calling SetSimulatePhysics(true) does as expe ...