Client Receives Incorrect Parent on Server Detachment if AttachParent Is Null

UE - Networking - Apr 6, 2017

User Description: In USceneComponent::PreNetReceive the old (in this case, non-null) AttachParent is being cached into NetOldAttachParent. In USceneComponent::PostRepNotifies, AttachParent and NetO ...

Nullptr dereference in FHeadMountedDisplay::UpdateSplashScreen()

UE - Platform - XR - Apr 5, 2017

A customer has had problems running a game with a splash screen when passing -game flag to the editor. UpdateSpashScreen will call GetCurrentFrame, which can return a nullptr but fails to verify it ...

Execute Console Command r.SetRes Fullscreen breaks Dynamic Skylights when tied to Event BeginPlay

UE - Graphics Features - Apr 6, 2017

Using the Execute Console Command 'r.SetRes 1920x1080f' directly with an Event BeginPlay node within blueprints, any Stationary/Movable Skylighting information is no longer visible. A simple workar ...

Changes made with the property matrix are undone when compiling a widget

UE - Editor - UI Systems - Apr 7, 2017

Changes made with the property matrix are undone when compiling a widget ...

Capsule Indirect Lighting with ILCQ Volume breaks on Skeletal Meshes when making Sublevel visible not in the current Camera Frustum

UE - Graphics Features - Apr 12, 2017

When using Capsule Indirect Shadows for Skeletal meshes who have their ILCQ set to Volume, and loading a SubLevel with it's actors not within the current camera's view, the indirect lighting is blac ...

Ensure condition failed in FGPUSkinCache::InternalSetVertexStreamFromCache

UE - Graphics Features - Apr 12, 2017

This ensure has occurred with some frequency in the 4.14 and 4.15 releases, and has been reported in the linked UDN post. Though this Jira links to one specific CrashGroup in CrashReporter, there a ...

GetCurrentPlayers() Always Returning 0

UE - Networking - Apr 14, 2017

GetCurrentPlayers() is returning 0 each time it is called, regardless of how many players are connected to the server. ...

Saving SubLevel Using Levels Tab Destroys Map Build Data Registry

Tools - Apr 20, 2017

When a Sub Level is currently open (meaning it is listed as the persistent level in the levels window) and you save the level using the levels window the map build data registry will get destroyed. ...

FixDeps step will relink Engine modules even if only project code was changed

Tools - Oct 12, 2016

This is Linux and possibly Mac specific. FixDeps step does not have the proper dependencies and instead depends on every library, even one it is not relinking. Reported on UDN (see additional URL f ...

UWorld::AttemptDeriveFromPlayInSettings() Returns Incorrect Net Mode

UE - Networking - Apr 28, 2017

UWorld::AttemptDeriveFromPlayInSettings() is returning NM_Dedicated server when Use Single Process is disabled in the play settings and the Editor Multiplayer Mode is set to Play as Listen Server. ...