Capsule component renders incorrectly with non-uniform scale

UE - Simulation - Visual - Jan 30, 2025

Capsule component renders incorrectly with non-uniform scale because the render uses the minimum between the X and Y values and the collision code uses the maximum between the two. This issue is men ...

Skeletal Meshes with Physics assets with less than 5 bodies will not use flag for Start Awake

UE - Simulation - Physics - Dec 8, 2015

When using a Physics Asset with 4 or less physics bodies the flag for Start Awake cannot be disabled, even if unchecked, when Simulate Physics is set to true. I've attached a project with assets f ...

Startup Movies Black Screen in Packaged Projects

Tools - Jun 25, 2018

Startup movies displaying black screen in packaged projects. Tested with 4.20p3 4135216 and 4.21 4157973 ...

StopMontage with different BlendOutTime not taken into account after first StopMontage

UE - Anim - Gameplay - Nov 19, 2024

When an animation is currently blending out due to automatic blend out or GameplayLogic, further StopMontage with specific BlendOut will not update the time to blend out of the current blending out ...

Crash when clicking "Reset to Default" button on the Details Panel for the MaterialAttributeLayers material node.

UE - Rendering Architecture - Materials - Jul 15, 2025

This crash repros from at least UE 5.3 and up to latest. The following assert is hit: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 1067] Array index out of bounds: 0 in ...

Tick delta time does not provide the time between ticks (as stated in documentation)

UE - Gameplay - Aug 10, 2015

In the description for delta time given for the tick event it states "Game time elapsed since last call to Tick". This sounds as though it is supposed to calculate the time in between ticks. However ...

Failed to Compile C++ Skip Conversion Project

UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 21, 2016

C++ projects are failing to compile when attempting to skip conversion from an older version of the engine. Error Message: C:\Users\laz.matech\Documents\Unreal Projects\MyProject4Test\Intermediate\ ...

Warning node generated on compile for component based Event Dispatchers

UE - Gameplay - Blueprint - Feb 16, 2017

Creating an event dispatcher inside a component class/blueprint with an array input and using that component in another blueprint causes the event node to generate a note on compile when the event i ...

Changing WidgetComponent's Background Color doesn't update the widget's background color

UE - Editor - UI Systems - Apr 29, 2020

It appears that changing the Background Color of a widget component doesn't immediately update the widget's render target. Toggling "Draw at Desired Size", however, does get the changes to reflect i ...

Autokey does not respect min and max limits of control rig animation channel.

UE - Anim - Sequencer - Dec 16, 2024

When using min or max set values for animation channels in sequencer, the sequencer viewport will show different values than what is capable when using autokey functionality. ...