FArchive broke operator<< for bool in Editor builds

UE - Foundation - Core - Feb 16, 2017

Looks like CL-3215392 added changes in FArchive where the operator<< method for bool is a member operator in Editor (as opposed to a global operator in non-editor and old builds). This causes shado ...

[CrashReport] <unknown module>!UE4Editor_TrueSkyPlugin!FTrueSkyPlugin::RenderFrame()

UE - Graphics Features - Mar 6, 2017

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...

Undoing pasting a component will crash ([CrashReport] UE4Editor_CoreUObject!FWeakObjectPtr::IsValid() [weakobjectptr.cpp:48])

UE - Gameplay - Components - Jul 20, 2017

This is a common crash affecting users in 4.16. The callstack is similar to [Link Removed], which was fixed in 4.13. User DescriptionsAccidentally duplicated a blueprint with multiple static mesh ...

SceneColor in surface material ignores translucent objects

UE - Graphics Features - Sep 22, 2017

Translucent meshes and particles behind an actor who's surface material uses SceneColor node are not rendered properly. Changing the view angle of the camera causes the translucent meshes to "pop" ...

Set relative location in construction script does not work when value is [0, 0, 0]

UE - Gameplay - Blueprint - Dec 11, 2017

The Set relative location in construction script does not work when the value is [0, 0, 0] when used it does not set the location back when the specified component is moved, it does work for any val ...

Win64 - Unplugging audio device causes game to freeze

UE - Audio - Nov 30, 2017

Win64 - Unplugging audio device causes game to freeze. Log is spammed with messages like the following after the device is removed:[2017.11.30-19.38.32:716][386]LogAudio: Warning: Waited 69.495094m ...

Iterative Cook does not only cook new content from Unreal Frontend

UE - Foundation - Core - Cooker - Jun 14, 2018

Using iterative cooking should only cause new or changed content to be cooked but in the Unreal Frontend, content is cooked every time, despite nothing being added or edited. Logs from two subseque ...

Actor Component Replication Not Working on Dynamically Spawned Components in Blueprint

UE - Networking - Aug 7, 2018

Actor components that are spawned dynamically through Blueprint are not being properly replicated to the client.  Found in 4.20 CL# 4233996 and reproduced in 4.21 Main CL# 4258917 Unable to test i ...

Find Session and Join Session to join a session over LAN on iOS is inconsistent and requires being run multiple times to work

UE - Networking - Aug 8, 2018

Attempting to use Find Session / Join Session to join a LAN session on iOS results in inconsistent results, requiring the client to press the join button multiple times to join properly. Currently ...

Component Array doesn't update properly when using Text Variables

Tools - Sep 19, 2018

A Component Array doesn't update properly when using Structure Variables. Any array elements added after the setup don't get printed when the event is called. If you set the "Editable when Inherited ...