Metal SM5 shader code cannot be viewed in the Editor on Mac

UE - Platform - Mobile - Aug 24, 2018

The Metal SM5 shader code cannot be viewed in the Editor for a Material. Prior to 4.20, only HLSL Code could be viewed. In 4.20, a number of additional shader options were added, and they all work w ...

HotReload: Static Mesh property reset on custom Static Mesh Component in Pawn Blueprint when a public property is changed to private in the parent Static Mesh Component code class

UE - Gameplay - Blueprint - Aug 24, 2018

Performing a Hot Reload after changing some properties in a custom Static Mesh Component code class from public to private appears to reset the static mesh set for any Pawn Blueprints that use that ...

Soft References resolved at Runtime result in References to Persistent Assets

UE - Gameplay - Aug 23, 2018

It is believed that soft references resolved during runtime, point to the edit time instances of actors instead of the runtime instances. This issue does not reproduce when it is called from an Inp ...

Characters using NavWalking on server have noticeable jitter on clients at lower framerates

UE - AI - Aug 23, 2018

AI nav walking doesn't allow clients to set a "Base" for the character (SetBase from UpdateFloorFromAdjustment), so there is no floor result on frames where there is a net update. This causes simula ...

Cannot pass a Dictionary through a Replicated Function

UE - Networking - Aug 23, 2018

When passing dictionary (map) variables through replicated (to server) functions, the value will not print out on the client. In 4.19.2 (CL-4033788) this caused a crash but in 4.20.2 (CL-4302132) an ...

Steam Controller and Xbox Gamepad both map to the first player

UE - Online - Aug 23, 2018

If multiple Xbox gamepads are connected (even if mixing Xbox 360 and Xbox One), all is fine. Each gamepad maps to its own player controller. However, if a Steam controller and an Xbox gamepad are co ...

Auto Wrap Text breaks inside of a ScaleBox

UE - Editor - UI Systems - Aug 22, 2018

Widget Elements within a scalebox  are inappropriately resized upon scaling. Tested in 4.19.2 (CL - 4033788), 4.20.2 (CL - 4306439), 4.21 (CL - 4305553) ...

Set world or relative rotation on a child component sets the wrong rotation

UE - Gameplay - Blueprint - Aug 21, 2018

Unexpected results from setting relative rotation on child of child in BP. Also confirmed in Main CL 4302610 "I have found that changing this code from RelativeRotationCache . RotatorToQuat (NewRe ...

PreviosFrameSwitch Material Expression Does Not Work With Displacement.

UE - Graphics Features - Aug 21, 2018

The PreviousFrameSwitch material expression works as expected only with world position offset, but not tessellated displacement. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, 4.21 CL# 4302610 ...

Datasmith is failing in converting UCX geometry to collision shells from Sketchup

UE - Editor - Content Pipeline - Datasmith - Exporters - Aug 21, 2018

Importing a Sketchup file that has the 'UCX_' prefix for collision, the collision is not imported into the Editor. Instead it is imported as a Static Mesh Actor. This is happening in both 4.19.2 ( ...