Unreal Engine Issues

ControlRig & Sequencer: FindControlRigs returns rigs even if their track have been removed

Constraint Actor to Rig with Editor Utility Widget is working for the first time adding to the Sequencer. However if it was deleted and added to Sequencer again, run Scripted Actor Action shows Err ...

SpringArmComponent with "Use Camera Lag Substepping" does not handle fluctuating frame rates correctly

The description of SpringArmComponent's "Use Camera Lag Substepping" option says "sub-step camera damping so that it handles fluctuating frame rates well". However, as noted and explained by a licen ...

Displacement + TAA causes "vibrating"/"buzzing" artifacts

There is a buzzing artifact on shadows that is seen in the provided test project. The problem seems to be far more subtle when VSM is turned off. Licensee mentions that turning r.Velocity.ForceOutpu ...

Post Process Material Chain Graph does not work with the mobile renderer

Lumen reflection distortion

Lumen reflections appear distorted depending on the camera orientation. ...

Server will process moves from client with bReplicateMovement set to false

UCharacterMovementComponent::ReplicateMoveToServer checks IsReplicatingMovement before sending moves to the server, but the server does not check IsReplicatingMovement when processing these received ...

Packed level actors have wrong transform in cooked builds when created from attached actors

Editing an array config property via ProjectSettings can end up editing other platform config properties.

Platforms .ini config files can end up with incorrect data, due to how ProjectSettings manages the config data. On a Windows machine, if we open the ProjectSettings window, all the data is going to ...

[bink video]Auto importing bk2 creates an asset with wrong path

Here is a work around : #include "binkplugin_ue4.h" UObject* UBinkMediaPlayerFactory::FactoryCreateBinary( UClass* Class, UObject* InParent, FName Name, EObjectFlags Flags, UObject* Context, co ...

Nanite mesh shadows not updating when CSMCaching enabled

A Nanite primitive casting a CSM shadow on another Nanite primitive with "Cast Shadows" disabled, will have it's shadow disappear completely when r.Shadow.CSMCaching = 1. ...