LineTraceComponent does not respect bEnablePerPolyCollision

UE - Simulation - Physics - Feb 26, 2019

USkeletalMeshComponent::LineTraceComponent does not properly consider bEnablePerPolyCollision. It appears to use the component's bodies, which are empty. It should be sufficient to use UPrimitiveCom ...

Compile error when Blueprint Interface returns a map type variable

UE - Gameplay - Blueprint - Feb 26, 2019

A Blueprint Interface function that returns a map type variable will fail compiling with various errors when called in another Blueprint. If the same function is setup in the Actor Blueprint instead ...

Draw as border is completely opaque when size in negative

UE - Editor - UI Systems - Feb 26, 2019

When an image widget is set to draw as border it will no longer render as a border if the size is negative. The widget appears completely opaque. ...

ResavePackages commandlet breaks sublevel translation

UE - Gameplay - Feb 26, 2019

Rebuilding lighting with commandlet will move hidden sublevels Confirmed in 4.23 MAIN @ CL 5194133 ...

Crash When Setting a Bool in a Niagara Parameter Collection via Blueprint

UE - Niagara - Feb 26, 2019

The Editor will crash when setting a bool in a Niagara Parameter Collection via Blueprint. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5159901, 4.23 CL# 5194133 ...

SceneCapture2D output broken when used in VR

UE - Platform - XR - Feb 25, 2019

Scene Capture regression when used with VR. Confirmed in Main @ CL 5172170 Tested with Rift Flipped VR Preview window is a known/fixed issue ...

ENGINE_API missing from GeomSweepMulti and GeomOverlapMulti templates

UE - Simulation - Physics - Feb 25, 2019

GeomSweepMulti and GeomOverlapMulti are not being exported, as the template specializations are declared outside of the physics interface class without ENGINE_API. ...

FPS drop after highresshot console command

UE - Graphics Features - Feb 25, 2019

Running the highresshot command with a multiplier of 6 or higher results in poor performance for the remainder of the Editor instance. Closing the PIE window does not improve performance, only closi ...

Crash(Assert) CurrentGWorld != PlayWorld || bIsSimulatingInEditor

UE - Gameplay - Feb 25, 2019

Crash when attempting to return to Main Menu when playing Shootergame in a New Editor Window. Unable to upgrade+test Shootergame in 4.22+ due to deprecation of Possess() and other compile errors. ...

Crash When Changing to Landscape Paint Tool With a Material Function for the World Position Offset of the Landscape Material

UE - Graphics Features - Feb 25, 2019

Crash on switching to landscape/paint tab when using a landscape material that has a material function hooked onto the WorldPositionOffset. Working as expected in 4.21 CL# 4753647 Found in 4.22 CL ...