meshes from 3ds Max which have custom pivots do not reappear in the level after undoing a delete action

UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 29, 2018

There is an issue occurring where meshes from 3ds Max which have custom pivots from a datasmith import do not reappear in the level after deleting them and then undoing the delete action. The mesh d ...

Spawned particles on the surface of a static mesh in Niagara get offset if the actor is anywhere but the world origin

UE - Niagara - Jun 11, 2018

Particles that are spawned using the surface of a static mesh will be offset from the systems placement in the world unless it is at world origin.  Working as expected in 4.19 CL# 4033788 Found in ...

Crash upon opening Windows 64 bit development build with only DX10 RHI enabled

When packaging with only support for DirectX10 RHI, the editor will crash after hitting "OK" on the window that mentions that the Global Shader Cache file is missing. This was encountered while run ...

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 ...

Namespaces are not removed when importing Skeletal Meshes from FBX, and breaks the importing of referenced Animations

Tools - Jul 24, 2018

Namespaces in skeletal mesh FBXs are coming in as prefixes to the bone name. This issue did not appear in 4.19.2 (CL-4033788), as seen in the attached picture. This issue was reported and tested in ...

Gear VR Touchpad input broken

UE - Platform - XR - Jul 27, 2018

Gear VR Touchpad input no longer functioning in 4.20 Noticed this appearing in 4.20 logs from device (did not appear in 4.19 logs): LogOcInput: Get touchpad main with data 0.000000 0.000000 Also t ...

"Expose on Spawn" variables in Actor Components are overridden by the details value.

UE - Gameplay - Aug 2, 2018

"Expose on Spawn" variables in Actor Components are overridden by the value set in their Details Panel when called in another Blueprint. This issue was reported and tested in 4.20.1 (CL-4233996). ...

PIE gets stuck on infinite loop when Background Streaming is disabled

UE - Foundation - Core - Aug 24, 2018

When "Use Background Level Streaming" is disabled, the Editor gets stuck loading in PIE when you press Play. This is a regression from 4.19.2 (CL-4033788). This issue was reported and tested in 4.2 ...

Disabling Bluetooth controllers also disables the Android Back input event

UE - Platform - Mobile - Sep 21, 2018

Disabling Bluetooth Controller support for Android also causes the Back button of the navigation bar to not work properly, as the input event does not fire when it is pressed. Regression?: No This ...

Translucent Materials Receiving Incorrect Shadows in Forward Shading

UE - Graphics Features - Oct 2, 2018

Translucent Materials will receive incorrect shadows in forward shading. This is working as expected in 4.18 CL# 3832480 Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 CL# 4408769, 4.22 CL# 4413 ...