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 ...

Spline Array created in code cannot be edited in a blueprint

UE - Gameplay - Components - Apr 20, 2015

If a TArray of spline components is created in code it is not possible to edit/add nodes to the spline inside a blueprint. ...

Spline Mesh Component created from KML file doesn't render in PIE after spline point change

Tools - Oct 8, 2015

Spline Mesh Component created from KML file doesn't render in PIE after spline point change I cannot get this to occur outside of the users test project. He is pulling data from a KML file, creatin ...

Adding a scene component to a child blueprint causes log warnings to appear in output log

UE - Gameplay - Blueprint - Sep 1, 2015

If a scene component is added to a child blueprint and the parent blueprint is compiled, a log warning will appear that states: "LogBlueprint:Warning: USimpleConstructionScript::FixupRootNodeParen ...

DetourCrowdAIController causes AI to update movement differently

UE - AI - Apr 3, 2015

When you use MoveTo BT node, with a target set as Actor and your AIController is DetourCrowdAIController, the AI pawn will update its goal destination much less frequently. Instead of constantly fo ...

Input from a second gamepad is not detected until the game window is clicked with the mouse

UE - Gameplay - Input - Dec 12, 2014

In a packaged local multiplayer game, input from a second gamepad is not detected until the game window is clicked with the mouse. The first gamepad input is detected as expected. ...

The World Outliner doesn't refresh after Seamless Travel

Tools - Apr 27, 2015

The World Outliner doesn't refresh after Seamless Travel. Enabling any of the View Options will refresh the list to properly show the actors in the current level. Reproduced in 4.7.6 binary and Mai ...

Custom Depth as Mask in High Resolution Screenshot Tool saving Boolean Value

Tools - Jul 28, 2016

Closing and re-opening a project that had the 'Use Custom Depth as Mask' option checked within the High Resolution Screenshot Tool, will cause the boolean value to be unchecked and the viewport to r ...

P_GPU_particls_collision2 barely visible when rendering in OpenGL3

UE - Graphics Features - Aug 17, 2016

I first experienced this on my Linux machine using a P4 build. I checked it against Windows in DX11 and did not experience the issue. Afterwards, I followed the above repro steps and saw it was occ ...

Static code functions cause associated blueprints to not compile after a hot reload

UE - Foundation - Cpp Tools - Hot Reload - Oct 14, 2016

If a function inside a BlueprintFunctionLibrary class is declared as static, instances of the function node inside blueprints cause the blueprint to not save after a hot reload. This does not affec ...