Unreal Engine Issues

Artifact Dots Appear When Adjusting Focal Distance and Camera Aperture

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 ...

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

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

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

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 ...

BuildGraph builds some tools for Win32 even if Win32 is excluded from the build

When creating a local binary build of the Engine using the BuildGraph, there are several tools that are built for Win32 even if Win32 was specifically excluded from the BuildGraph (ie. -set:WithWin3 ...

Renaming a folder that contains a read-only asset from the Sources Panel causes the Content Browser and Sources Panel to desync

Renaming a folder that contains a Read-only asset from the Sources Panel causes the Content Browser and Sources Panel to desync. This causes the original folder (which should still exist since the E ...

Left and Right eye render Ambient Occlusion differently

Ambient Occlusion appears to render differently in each eye when using the oculus rift. This give the user a cross eyed feeling ...

Niagara System User Parameters Resetting After Closing the Editor

Niagara System user paramemters will reset upon restarting if they are used in a Blueprint. This also occurs to the system if you move the blueprint after making changes then pressing Ctrl+Z.  Foun ...

BumpOffset Node Produces Incorrect Results When Texture Coordinate Index Is Not 0

When using the BumpOffset node, it will produce incorrect resultsi if the Texture Coordinate Index is not 0. Found in 4.20 CL# 4369336. 4.21 CL# 4613538, 4.22 CL# 4751672 ...

Double-clicking a level asset in the content browser loads the level with EWorldType::Inactive

Incorrect net mode during EndPlay in PIE

Actor GetNetMode() can return the wrong value in EndPlay when the PIE world is being shut down. ...