Unreal Engine Issues

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. ...

ABSLOG command fails to parse properly if path includes a ) and does not contain a space

A licensee has reported an issue where using ABSLOG results in some parsing issues with certain characters in path names. In this example, the issue is with ). If the Parse function ends up parsing ...

Pause animation does not work at the second preview playback in sequencer

This behavior can pause well for the first time playback, but it will not work for the second time. Also, as you touch the seek bar you will be able to pause. ...