PerInstanceRandom does not work on Instanced Static Meshes spawned at runtime

UE - Graphics Features - Aug 11, 2017

PerInstanceRandom does not provide a random value when the material is being used on an Instanced Static Mesh that is spawned at runtime, the value is always the same. Regression?: Yes This did not ...

UMG Widgets containing child widgets that have bound animations fail to save

UE - Editor - UI Systems - Jan 10, 2020

Adding a child widget that contains a bound animation to a separate widget blueprint results in failure to save. Working in 4.22.3 Tested in: 4.22.3 CL#7053642, 4.24.1 CL#10757647, 4.25 CL#108892 ...

Rearranging Slate Brushes causes crash

UE - Editor - UI Systems - Jul 14, 2019

Rearranging the order of a Slate Brush array causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7305105), 4.24 (CL - 7285696) ...

OnClicked event of UMG button fires once in twice if virtual joystick is receiving input.

UE - Editor - UI Systems - Oct 14, 2015

OnClicked event of UMG button fires once in twice if virtual joystick is receiving input. Both Andorid and iOS devices are affected. This issue is found with 4.9 update. under 4.8 are fine. ...

Instances Created From Merge Actor Have Corrupt Lightmaps

UE - Graphics Features - Jun 6, 2019

Instances Created From Merge Actor Have Corrupt Lightmaps. Working as intended in 4.20 CL# 4369336 and 4.21 CL# 4753647 Found in 4.22 CL# 6574378 and 4.23 CL# 6842436 This is a regression. ...

Scaling a SceneCapture2D from Default Scale will cause Decals to Disappear in the Render Target

UE - Graphics Features - Dec 6, 2016

When scaling a SceneCapture2D actor/component any decals there were being rendered within the Render Target disappear. I also noticed that when the SceneCapture2d is set to orthographic, the scale ...

ContentExamples: StaticMeshes Example 1.7 "StaticMeshEditor" is all one word

Docs - Samples - Jan 19, 2017

StaticMeshes Example 1.7 "StaticMeshEditor" is all one word The word Static Mesh Editor is 3 separate words in unreal documentation https://docs.unrealengine.com/latest/INT/Engine/Content/Types/Sta ...

Crash Occurs Enabling new Audio Mixer with Audio Devices Disabled

UE - Audio - May 25, 2017

If a user has all their audio devices disabled, and then enables the new audio mixer for 4.16, a crash occurs when trying to launch any new or existing project. This is a regression as this crash d ...

Enable HDR Display Output on Game User Settings Crash

UE - Graphics Features - Jun 14, 2018

Crash when attempting to enable HDR via UserSettings This crash will also occur when project is fullscreen. User's Environment: "I have an Nvidia GTX 1080 Ti and have two monitors attached: 1. ...

Start Up Movies Are not Playing for iOS Devices when using Launch-On

UE - Platform - Mobile - Dec 9, 2016

When designating 3 Intro/Start Up movies to play back to back in the Project Settings of a mobile project, the user reports that they will play as expected for Android devices, but only one movie wi ...