STAT_AI_BehaviorTree_InstanceMemory is sometimes wildly inaccurate

UE - AI - Jun 10, 2020

From the UDN thread: Turns out this is caused by the way this stat was implemented for the FBehaviorTreeInstance struct: 1) You call IncMemoryStats on construct, before the struct is populated with ...

Native Component bound events do not throw an error when they are removed from a component

UE - Gameplay - Blueprint Compiler - Jun 25, 2020

This is related to the previous issue where if you deleted a component than there would be no errors ([Link Removed]), but instead of the component itself being deleted, the delegate has.  The er ...

Per-object shadow corrupts on Android Vulkan

UE - Platform - Mobile - Jul 2, 2020

Background Geometry has thin holes when r.SeparateTranslucencyScreenPercentage is 50

UE - Rendering Architecture - RHI - Jul 2, 2020

Edge artifacts appear when r.SeparateTranslucencyScreenPercentage=50. ...

Details View loss of expansion state on container changes

UE - Gameplay - Blueprint Editor - Aug 3, 2020

From the UDN post: When the new entry is added, the entire tree gets wiped out as a result of the CDO swap, and when these update methods run it leaves the tree in a default expansion state. (Effect ...

Chaos cloth simulation bounds are incorrectly rotated when using local space simulation

UE - Simulation - Physics - Character - Aug 18, 2020

The bounds are wrongly calculated when the bUseLocalSpaceSimulation property is set in the Chaos Cloth shared config, as it doesn't take into account the character rotation in the removal of the off ...

Private and Protected functions do not display in the context menu in child BPs

UE - Gameplay - Blueprint Editor - Aug 27, 2020

This was introduce by changes to UEdGraphSchema_K2::CanFunctionBeUsedInGraph in CL 9230757 for [Link Removed]. ...

Android ETC2 Debug Builds Crash on Startup

UE - Platform - Mobile - Sep 9, 2020

Android apps build with the debug configuration on ETC2 will crash on launch. ...

Enabling window animations in the editor can cause dropdown windows to constantly reposition

Tools - Apr 12, 2017

Dropdowns do not reposition correctly in a details panel when window animations are enabled. With animations disabled, they'll reposition to stay attached to the field they are modifying. ...

Convert to function to event incorrectly shows up when editing BP Interface Blueprints

UE - Gameplay - Blueprint Editor - Oct 29, 2020

The BP interface graph shouldn't be able to convert functions to events because they are inherently all function graphs.  ...