Performance problems (freeze) in SCS tree view with a significantly large number of components

UE - Gameplay - Components - Mar 9, 2018

User reports an unreasonably long editor freeze when a significantly large number of components need to be processed in the SCS editor tree view (tens of thousands) when selecting an instance of a B ...

DeferredDecal has rendering issue on iphone

UE - Platform - Mobile - Mar 9, 2018

I uploaded a test project. The issue can be reproduced at Iphone8(IOS 11) and Iphone6s(IOS 10.3.2). ...

Preview Scene Settings in Material Editor are not Saved

Tools - Mar 3, 2018

Changes made to the Preview Scene Settings in the Material Editor are not saved. The preview scene will default to grey background instead of EpicQuadPanorama_CC+EV1 because "Show Environment" is al ...

Spawnables in Level Sequence Cause Sequence to Dirty

UE - Anim - Sequencer - Feb 7, 2018

When a sequence contains a spawnable, it is immediately dirtied after saving and closing ...

"Go to Definition" does not work properly in Binary

UE - Foundation - Core - Feb 1, 2018

Using the Go to definition option on a blueprint node in the Binary editor opens Visual Studio but does not actually show the definition as requested. The user is instead given the following warning ...

Editor Crashes when turning on Temporal Upsampling on Mac

UE - Graphics Features - Jan 19, 2018

There is an issue occurring where the editor crashes when turning on Temporal Upsampling on Mac. This issue is not a regression as the feature was added in 4.19 Versions tested: 4.19p1 CL - 3837072 ...

Black screen displayed on iPad when project using ARKit enables the Metal Forward-Desktop Renderer option

UE - Platform - XR - Dec 20, 2017

When the Metal Desktop-Forward Renderer option is enabled for a project using the ARKit, the camera input does not appear to be displayed as the background for the app. The background remains black, ...

[CrashReport] UE4Editor_AIModule!FEnvQueryInstance::PrepareContext() [envqueryinstance.cpp:128]

UE - AI - Dec 14, 2017

Comment from user:Moving EQS Testing pawn with live update ...

Can Not Add New Montage Section Name to a Montage on a Mac

OLD - Anim - Nov 21, 2017

-Section Name shows up on Windows and not Mac -Does not occur in 4.17.2 Currently waiting to test in 4.19 ...

[CrashReport] FMacWindow::ApplySizeAndModeChanges | SWindow::Resize()

UE - Platform - Apple - Nov 21, 2017

This is an infrequent Mac crash in the 4.18 release. The callstack is similar to [Link Removed] and originally thought to be part of the same issue, but that Jira has been fixed and many other simi ...