UMG Designer preview: Incorrect resolution on Samsung s8 and s9

UE - Editor - UI Systems - Jul 30, 2018

"By default, the device profile for android_high (which is used by phones such as the galaxy s8 and s9) gives a scale factor of 1.0 resulting in 1280x720. When choosing a ~2:1 device such as the gal ...

Temporal AA and Motion Blur Does Not Work on Manually Animated Bones

OLD - Anim - Jul 30, 2018

Manually animated bones of skeletal meshes do not correctly work with temporal AA and motion blur even if "Per Bone Motion Blur" is enabled. Found in 4.20 CL# 4233996 and 4.21 CL# 4234136 Unable t ...

Meshes simulating physics cannot roll smoothly across multiple connected meshes

UE - Simulation - Physics - Jul 30, 2018

A user has reported a physics regression from 4.19 to 4.20 where attempting to roll a static mesh down a slope made of multiple meshes no longer results in a smooth roll. The static mesh will skip a ...

Disabling "Support Stationary Skylight" Causes Crash With Forward Shading Enabled

UE - Graphics Features - Jul 30, 2018

Disabling 'Support Stationary Skylight' crashes if you select anything in the editor when Forward Shading is also enabled. Working as expected 4.19 4033788 Found in 4.20 CL# 433996 and 4.21 CL# 42 ...

Setting Game Instance Class using Selected Asset from Content Browser does not work

UE - Gameplay - Blueprint - Jul 30, 2018

Trying to set the Game Instance Class using the select asset from content browser setting results in the field being set to none. ...

ARCore plugin missing 'tools' components

UE - Platform - XR - Jul 28, 2018

https://forums.unrealengine.com/development-discussion/vr-ar-development/1494917-ue-4-20p4-arcore-image-database-cannot-build/page2 Bo Pang from Google writes: "I think there are two issues here: 1 ...

[ CATIA ] Datasmith Error importing part from CATIA v5

UE - Editor - Content Pipeline - Datasmith - Importer - Jul 27, 2018

When importing the attached CATIAv5-file Screw.CATpart via Datasmith, The following error is recieved: LogDatasmithImport: Warning: Failed to import '../../../../../../Screw.CATPart'. Failed to cre ...

Multiplayer Shootout fails to package properly

Docs - Samples - Jul 27, 2018

Attempting to package the Multiplayer Shootout example results in an error and the packaging attempt fails. The error can be found in the attached log. Regression?: No This occurred in 4.18 and 4.1 ...

Animations are stuttering in Game Preview Server window

UE - Networking - Jul 27, 2018

When 'Run Dedicated Server' is unchecked and you run PIE with 2 or more clients, all client's animations are stuttering on Game Preview Server window. This does not happen when Run Dedicated Server ...

BuildCookRun fails to package if the -build parameter is used and debug symbols have not been installed in the binary Engine

UE - Foundation - Cpp Tools - Jul 27, 2018

Attempting to package a code project using BuildCookRun does not complete the package process successfully if the -build parameter is included. With the -build parameter included, the process fails ...