Collision between physicalized actors and instanced static meshes produce warnings.

UE - Simulation - Physics - Sep 25, 2023

Collision between an instanced static mesh and a physics simulating actor (with "simulation generates hits events" enabled) results in the following warning: LogChaos: Warning: Collision handler en ...

'GetClassDefaults' Can Cause Blueprint To Become Modified When Unrelated Blueprint Is Compiled

UE - Gameplay - Blueprint - Sep 22, 2023

The stems from a really old change (CL 2948683) to fix [Link Removed]. Compiling ObjectA will call RefreshExternalBlueprintDependencyNodes on its dependent BP,  ObjectB_ReferencesA, which reconstru ...

Crash when editing nested Blueprint structures

UE - Gameplay - Blueprint - Sep 22, 2023

See submitter's analysis here: [Link Removed] ...

Paper2D crashes on flipbooks with dynamic materials

UE - Gameplay - Paper2D - Sep 22, 2023

Having flipbooks with dynamic materials and then playing/stopping multiple times crashes the editor. ...

BuildCookRun: EnablePlugins parameter generated improper cooking command line.

From the UDN post that reported the problem:  The BuildCookRun Automation script offers a commandline option called -EnablePlugins= which allows the user to specify additional plugins that should ...

Dataprep Import Causing Unloaded Stream Levels to Reappear in Editor

UE - Editor - Content Pipeline - Visual Dataprep - Sep 22, 2023

Crash when deleting BindingOverrides if the target property is left open on the details panel

UE - Anim - Sequencer - Sep 22, 2023

Crash if opening ALevelSequenceActor::BindingOverrides in the details panel and run a process that empties the BindingOverrides elements. Workaround: FMovieSceneObjectBindingID FMovieSceneObjectBi ...