Unreal Engine Issues

Parent component visibility in a child blueprint isn't reflected in a launched project.

Parent component visibility in a child blueprint isn't reflected in a launched/packaged project. ...

Dynamically binding 'OnComponent' functions in code doesn't trigger bound functions

Binding a function in code to OnComponentBeginOverlap, OnComponentEndOverlap, or OnComponentHit does not trigger the bound function from code. ...

BuildGraph build fails if Use Unity Build and Use PCH Files are set to false in BuildConfiguration.xml

Using BuildGraph to create a local binary build of the engine fails if the BuildConfiguration.xml file has bUseUnityBuild and bUsePCHFiles both set to false. The build fails due to some missing Json ...

Using Delay with Tick when Paused doesn't work

Using a delay node in an event graph of actor using tick when paused will not work. It pauses the delay node. ...

Collision of child actor doesn't rotate if the parent is simulating physics

Collision of child actor doesn't rotate if the parent is simulating physics. This was an old bug that an AnswerHub user reported back in 4.9 but now a licensee is reporting this same behavior in 4.1 ...

Hidden enumerator variables can cause the enumerator to become broken with the Select node in blueprints

If a user makes an enumerator in C++ and sets one of the variables to Hidden and doesn't make it the last variable of the enum, it will cause issues with the numbering of the enum when using the Sel ...

FoliageInstancedStaticMeshComponent Include Actor in HLOD state in InstancedFoliageActor is not set by change in FoliageType asset

In Editor, Blueprint resources are not freed up when the Blueprint is closed

It appears that the preview scene used to render thumbnails is not destroyed after a thumbnail is rendered, even after the blueprint editor is closed and GC is run. Also found in Release-5.4, CL: 31 ...

ChaosCacheManager is not properly recording the state of each particle when toggling Fields and Anchor Fields in the scene.

ChaosCacheManager is not properly recording the state of each particle when toggling Fields and Anchor Fields in the scene. During my investigations I've noticed that ChaosCacheManager does not reco ...

User's editor crashes when using a certain EditorLayout.ini

The users editor crashes on open when changing the layout ...