Crash when audio device is unplugged and the audio mixer engine is in use

Audio - Jan 11, 2019

The Editor crashes when using the new audio mixer and adding/removing a USB headset to the PC. ...

Artifact Dots Appear When Adjusting Focal Distance and Camera Aperture

Rendering - Jan 11, 2019

When shifting camera aperture and focal distance, dot artifacts appear on meshes. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4708082 ...

Modifying ShooterGame header file for faster compiling causes crash behavior.

Core - Jan 11, 2019

Using bFasterWithoutUnity and MinFilesUsingPrecompiledHeaderOverride, on ShooterGame.Build.Cs results in Engine crash. ...

UHT "Type TArray is not supported by blueprint" error message is ambiguous

Core - UnrealHeaderTool - Jan 11, 2019

An overly generic error message is produced when you have a TArray UProperty that contains a non-blueprint friendly type. For example: UPROPERTY(EditAnywhere, BlueprintReadWrite, editfixedsize) TA ...

Adding an Object to a Plugin using the C++ Class Wizard results in a compilation error.

Core - Jan 10, 2019

Adding an Object class to a plugin's module using the C++ Class Wizard results in a compilation error due to attempts to edit the new class' generated.h file during the initial compilation attempt. ...

Problem in deleting multiple node objects in Animation Sequence

Anim - Animation - Jan 10, 2019

From what I could see this is different than JIRA issue UE-13045. All the selected nodes information seem correct until the NodeObject->Delete(Sequence) in SAnimNotifyPanel::DeleteSelectedNodeObjec ...

Platforms that allow for configurable VOIP sample rates do not respect config values

Audio - Jan 8, 2019

Because of when GetEnumValueFromString (called by GetVoiceSampleRate) executes for certain modules at load time, the global enum master list is empty, which leads to the config value not being parsa ...

When having two viewport panes open in editor, and piloting/unpiloting a camera actor in one pane, will cause the other pane to reset viewport camera orientation.

Tools - Jan 8, 2019

Piloting and "Un-piloting" a camera Actor in viewport pane causes other viewport panes to reset its view orientation upon "Un-piloting" of Camera Actor. ...

VertexInterpolator Makes Landscape Materials Fail to Compile

Rendering - Jan 7, 2019

If a VertexInterpolator is used in a material that is applied to a landscape the material will fail to compile. Found in 4.20 CL# 4369336, 4.21 CL# 4.21 CL# 4613538, 4.22 CL# 4681912 ...

When the engine version updated, partial data of TMap/TSet type of DataTable is missing

Core - Jan 7, 2019

When updating to 4.21, Element previously added to DataTable is missing. This only occur when you move to 4.21. If it change from 4.19 to 4.20, DataTable will keep data. it can restore broken data b ...