Volumetric Lightmap grid uneven placement over flat floor

UE - Graphics Features - Lumen - Jul 17, 2018

https://udn.unrealengine.com/questions/441682/volumetric-lightmap-grid-anomaly.html Certain maps have large gaps in Volumetric Lightmap cell density where even density is expected.   A repro map ...

Setting collision enabled on a primitive component fails if the owner's collision is disabled

UE - Simulation - Physics - Jul 17, 2018

Attempting to edit the "Collision Enabled" setting of a primitive component while the owner's collision is disabled results in no changes. Regression?: No This occurs in 4.18 ...

Object Scale Material Node Returning Incorrect Information When Rotated to Certain Angles

UE - Graphics Features - Jul 17, 2018

When using the object scale node in a material it will return incorrect values if rotated to certain angles. Found in 4.19 CL# 4033788, 4.20 Preview 20 CL# 4173640, 4.21 CL# 4209927 ...

Copying an instance of a blueprint actor that has an extra, non-default element in an array does not copy that extra element

UE - Gameplay - Blueprint - Jul 16, 2018

Copying a blueprint instance that has an array does not copy any elements added to that array directly on the instance and only copies the blueprint's default array elements This worked in 4.13 and ...

'Set Timer by Function Name' not able to call functions that return an Output Parameter

UE - Gameplay - Jul 16, 2018

When using a 'Set Timer by Function Name' node with a Function that has an Output parameter it will fail at executing the Function. If the Function is called with an Event BeginPlay node it will fu ...

Houdini CSV in Niagara in Blueprints doesn't seem to work properly

UE - Niagara - Jul 13, 2018

See https://udn.unrealengine.com/questions/444762/how-to-change-niagara-system-exposed-parameters-in.html ...

Packaging fails during compilation when nativizing a blueprint using ForEach and ByteTo with a custom enum type

UE - Gameplay - Blueprint - Jul 13, 2018

When using Blueprint Nativization, the compilation will fail during packaging when using a ForEach loop or ToByte conversion with a custom enum in a TMap. Regression?: No This occurs in 4.18 ...

Cursors: 'Grab Hand' and 'Grab Hand Closed' appear as 'Hand' in packaged project

UE - Editor - UI Systems - Slate - Jul 13, 2018

GrabHand Cursors appear as Hand (Index finger cursor) in a packaged project 4.20p5 CL# 4173640 4.21 CL# 4179764 ...

Setting CrowdManagerClass via Project Settings doesn't work

UE - AI - Jul 13, 2018

Due to the way we pick CrowdManagerClass at runtime (see UNavigationSystemV1's constructor) whatever is being set via project settings is ignored. ...

Light Function Material with Volumetric Fog Causes Screen-Space Banding

UE - Graphics Features - Jul 12, 2018

With a light function being used on a light and volumetric fog enabled if you move the camera around it will cause screen-space banding at the edges of the screen. Found in 4.19 CL# 4033788, 4.20 P ...