Media Player can't continue to play after the progress bar is dragged.

UE - Media Framework - Nov 15, 2023

This bug occurs in 5.3 version. It's ok in 5.2 version. ...

Patterns On Landscape Spline Normals

UE - Graphics Tools - Terrain - Oct 31, 2025

On higher-density Landscapes, Landscape Splines can lead to patterned artifacts in the geometry normals. Also tested on //UE/Release-5.6, CL:45232827 ...

When a TSoftObjectPtr pointing to a const type is used as a parameter for a Dyanmic delegate, unreal marks it as deprecaded.

UE - Foundation - Cpp Tools - UnrealHeaderTool - Jan 21, 2025

A change has been done to the TSoftObjectPtr class that warns when constructing a pointer-to non-const from a pointer-to-const. This change makes sense and is correct. Example: UTexture2D* Loade ...

CopyTask in BuildGraph never throws an exception if the copy fails

UE - Foundation - Horde - BuildGraph - Feb 28, 2023

CopyFile function in CommandUtils.cs assumes that an exception will be thrown if the number of retries is exceeded, but the loop condition prevents it from being thrown. Following fix works:publics ...

Destroying Actor via RepNotify After Seamless Travel Causes Pending Kill Warning

UE - Networking - Dec 15, 2016

Attempting to destroy an actor via a repnotify after seamless travel is causing the actor to fail to be destroyed because of a pending kill warning: [2016.12.15-19.10.13:936][574]LogNetPackageMap:W ...

Blueprints from UE4 with dangling delegate reroute node crashes on UE5 load

UE - Gameplay - Blueprint Compiler - Dec 22, 2023

If a project from UE 4.27 or earlier has a blueprint with a reroute node dangling (no outgoing connection) from a Custom Event Node's delegate pin (red), this blueprint will crash when loaded in UE ...

Using "Replace variable with..." does not mark a blueprint as needing compilation

UE - Gameplay - Blueprint - Jan 4, 2016

Using "Replace variable with..." does not mark a blueprint as needing compilation. Reproduced in 4.9.2 binary, 4.10.1 binary, and Main 4.12 (CL 2813214). This is not a regression; the same bug appe ...

[MetaSounds]- Attemping to copy and paste inputs between graphs can cause nodes with duplicate pins

UE - Audio - MetaSounds - Aug 15, 2023

Video example: [Link Removed] Occurs in 5.2 as well as 5.2. ...

ChaosWheeledVehicleMovementComponent is breaking the const CDO contract and changes to the instances are being applied to the CDO

UE - Simulation - Gameplay - Apr 28, 2025

As described by the licensee, the const CDO contract is being broken on ChaosWheeledVehicleMovementComponent. The issue the licensee is facing is that by spawning cars with different configurations, ...

Reference to control rig can be lost on actors with multiple skeletal mesh components

UE - Anim - Rigging - Control Rig - Apr 4, 2023

In the attached project, when we initially add a control rig track for the actor with multiple skeletal mesh components, we add the control rig for the correct component because FControlRigParameter ...