Unreal Engine Issues

BuildGraph cannot create installed build for Windows

Attempting to create an installed build of the Engine for Windows using BuildGraph currently fails when the process attempts to copy some Linux files to the installed build. This appears to be due t ...

In Texture paint mode falloff is not respected when dragging to paint

Multiple mouse samples per frame are causing this to happen. code needs to be moved to tick ...

[CrashReport] UE4Editor_MediaAssets!UMediaPlayer::GetPlaylistRef() [mediaplayer.h:890]

Comment from user:double clicked on a media player asset that I just cloned 880 /** 881 * Get the current play list. 882 * 883 * @return The play list. 88 ...

SwarmCoordinator.exe is missing from binary build

Subtractive Geometry Brushes All Show a + In The World Outliner

Subtractive Geometry Brushes All Show a + In The World Outliner. Works as expected in 4.19 CL# 4033788 Found in 4.20 CL# 4213847 and 4.21 CL# 4221482 This is a regression.  ...

Arrays on multicast events called from the server are not passed to clients

Arrays that are passed into a Multicast Event as an input are not available on clients who call the function Regression?: Yes This did not occur in 4.19.2 ...

Renaming native struct with redirect can break user defined structs

From https://udn.unrealengine.com/questions/444690/redirecting-ustruct-used-as-member-of-userdefineds.html In 4.20 it was changed so soft object ptrs pointing to classes work correclty with +ClassR ...

Possible data loss/corruption when loading levels in editor

Reported behavior: Given Level_A which contains object_X, where object_X references Level_BDeleting object_X causes AssetRenameManger to check if we need to patch up other levelsLevel_B is load ...

Cannot build a project containing a UFUNCTION that takes a pointer to a deprecated component as a parameter

If a UFUNCTION takes a pointer to a component as a parameter, the project cannot be built if the component's class is marked as deprecated. The error message that is provided states that the propert ...

Undoing a change to the content of a Text widget while it is still selected causes an assert

Hitting undo on a text widget while it is still selected will cause an assert. This appears to happen because the widget loses focus and attempts to commit it's text while still processing the undo, ...