ResavePackagesCommandlet needs to handle resaving ExternalActors for -FixupRedirectors

UE - World Creation - Worldbuilding Tools - Dec 19, 2023

ResavePackagesCommandlet -fixupredirects fails to fixup pointers from external actors that are pointing to objectredirectors. It fails to fixup those pointers because we specifically skip loading of ...

5.4, FRHIMemoryPool leaks memory

UE - Rendering Architecture - RHI - Feb 12, 2025

FRHIMemoryPool will leak data when it is destroyed. "FRHIMemoryPool::Init()" will create "FRHIMemoryPool::DesiredAllocationPoolSize" new "FRHIPoolAllocationData" objects, stored in "FRHIMemoryPool: ...

The Starter Contents SM_Statue exists in a bad state, leading to crashes when trying to open levels where it is referenced

UE - Graphics Features - Ray Tracing - Feb 18, 2025

The SM_Statue exists in a bad state leading to a crash when it is loaded or anything that references it is loaded, e.g. Minimal Default level in the Starter Content. It can be deleted as a temporar ...

Static Mesh Component Scale Displays Incorrect Values on Static Meshes as Scene Roots

UE - Gameplay - Blueprint - Mar 8, 2016

Static mesh components incorrectly display scale information through the Detail's Pane and Blueprint editor window until simulation is pressed. This occurs if the static mesh component is moved to t ...

Scene Capture 2D will default back to View 0

UE - Graphics Features - Oct 8, 2015

The scene capture will revert back to the Character BP that is placed in the level when player 2 is not moving. When they are moving the scene captuer will show correctly. You can get around this ...

Gameplay ability sending server RPC can disconnect client during seamless travel

UE - Gameplay - Aug 15, 2023

During seamless travel, the engine renames kept actors into the transition/destination level. This process results in the actor's components being unregistered and re-registered. For the ability sys ...

Moving a saved duplicate of an OpenWorld level crashes the Editor

UE - World Creation - Worldbuilding Tools - Mar 19, 2025

Moving a saved duplicate of an OpenWorld level crashes the Editor. The act of moving the duplicated OpenWorld level crashes the Editor the moment the engine tries to delete the original level, so it ...

Cascade Previewer Has Strange Behavior With Particles With Source Movement Module

UE - Graphics Features - Feb 7, 2017

Particles that use source movement will start shooting out violently while in the cascade preview window. You need to have the movement option checked under the view settings. If you also check the ...

Unable to open Unreal Engine after cleaning project in XCode

UE - Platform - Apple - Aug 31, 2020

When I have the Epic Games Launcher open as I clean the Xcode project, the top right button will still read "Launch." Clicking on it after the Xcode project is finished cleaning causes the following ...

Crash from FGameplayDebugger when pressing PIE after Dragging PlayerController to Empty Player Component

UE - AI - Jun 16, 2015

A crash occurs after dragging an 'Empty Character' actor into the viewport and attempting to add the 'PuzzlePlayerController' as a component by dragging it into the components list via the 'Details' ...