Skylight mobility settings interfere with Ray Tracing accuracy

UE - Graphics Features - Lumen - Oct 28, 2019

When skylight raytracing is enabled, and skylight mobility is movable, skylight diffuse convolution is used on top of the skylight diffuse raytracing, causing severe bias and incorrect raytraced res ...

Oculus NetDriver Regression/Fix

UE - Platform - XR - Oct 26, 2019

From https://github.com/Oculus-VR/UnrealEngine/issues/60#issuecomment-544537005 UOculusNetDriver::LowLevelSend was modified to take an FInternetAddr pointer instead of an FString (due to the same c ...

Multiple Planar Reflections are not captured when forward shading

UE - Graphics Features - Oct 25, 2019

After enabling forward shading, having two planar reflections in the scene causes one instance to not render properly. Tested in 4.22.3 (CL - 7053647), 4.23.1 (CL - 9631420), 4.24 (CL - 9828119), 4 ...

Mobile Preview -> AutoLandscape Material broken if created in 4.22+

UE - Platform - Mobile - Oct 25, 2019

Landscape Layers created in 4.22+ revert to default material in Mobile Preview. Confirmed in MAIN at CL 9730599 ...

Save the world bookmarks in the FWorldTileInfo in World Composition

UE - World Creation - Worldbuilding Tools - World Composition - Oct 25, 2019

Async loading fails because AssetManager's bHasBlueprintClasses does not consider WidgetBlueprint

UE - Editor - UI Systems - Oct 25, 2019

When bHasBlueprintClasses of AssetManager is enabled, WidgetBlueprint is not included in ClassName of ARFilter. Therefore, asynchronous loading using AssetManager of the UUserWidget inheritance clas ...

Crash Creating Geometry Collection on Windows 7

UE - Simulation - Physics - Oct 24, 2019

Crashing on windows 7 when trying to create a geometry collection or opening the chaos destruction demo. Breaking on D3D11Util.cpp: Line 249 UE_LOG(LogD3D11RHI, Fatal,TEXT("%s failed \n at %s:%u \n ...

Cannot change Collision Profile of BP component instances

UE - Simulation - Physics - Oct 24, 2019

BP instances placed in level cannot have their components' collision profiles modified to anything other than default and custom. Note that this did not occur in 4.22 (after applying the separate ...

Session searching not working properly on iOS in Shootergame

UE - Online - Oct 24, 2019

Searching for sessions is not properly working in shootergame on iOS.  In SessionInterfaceIOS the current session search code is broken, and will never return any results. [Link Removed] [Link Remo ...

Gameplay Abilities CancelAllAbilities not working as expected

UE - Gameplay - Oct 24, 2019

in AbilitySystemComponent_Abilities.cpp, line:844  CancelAllAbilities() does not appear to be working as expected.  There is a check before cancelling all abilities.  However, this check uses the Cl ...