Using a Short cut to create a local variable in an event graph that does not support them will cause a crash

UE - Gameplay - Blueprint - Oct 12, 2015

If the user creates a shortcut for creating a local variable within the editor preferences and then uses that short cut in the level blueprint this will cause a crash. ...

WorldToMeterScale appears to snap back to default when VR headset does not meet 90 FPS if WorldToMeterScale has been changed

UE - Platform - XR - May 29, 2018

WorldToMeterScale appears to snap back to default when VR headset does not meet 90 FPS if WorldToMeterScale has been changed ...

Using VR in standalone mode will cause the screen to go black in 4.8

UE - Platform - XR - Jun 16, 2015

If a user launches in standalone mode with the oculus plugged in and turned on and then proceeds to press Alt+Enter then the screen will just turn black. Must have multiple tabs in the editor open t ...

Sequencer Sub Sequence cannot play back from Master Sequence at a Time Scale under "1.0"

UE - Anim - Sequencer - Dec 13, 2018

Sequencer Sub Sequence cannot play back from Master Sequence, when the Property Time Scale is set to numbers under "1.0" ...

Vehicle Template with Thruster Configuration will be affected by force relative to the distance from the origin

UE - Simulation - Physics - Mar 18, 2025

Vehicle Template vehicle with added Thruster Configuration to its VehicleMovementComponent will be affected by force relative to the distance from the origin. At around 200000 the force is enough to ...

A static object using 'Complex as simple' collision will not collide with a dynamic object that is simulating physics

UE - Simulation - Physics - May 20, 2015

If a static object has 'Use Complex collision as simple' set as its collision type, it'll collide with a player but will not collide with objects that are dynamically simulating physics. ...

Packaging a game with the Leap and Paper 2D plugins turned off will result in errors on launch of the packaged game

UE - Foundation - Cpp Tools - Plugin System - May 21, 2015

If the user disables a plugin that is on by default and then packages that game out for windows they will receive an error upon launching the packaged game ...

Compiling a Blueprint that references a deleted Macro from a Custom Macro Library will crash the editor

UE - Gameplay - Blueprint - Sep 3, 2015

Compiling a Blueprint that references a deleted Macro from a Custom Macro Library will crash the editor. Crash Report: [Link Removed] This is a regression: did NOT occur in 4.8.3. Reproduced in 4. ...

When the particle system manager is enabled particle system components will always tick in start physics

UE - Niagara - May 24, 2019

The particle manager only accounts for the particle system component's attach parent's EndTickGroup. When setting the tick group through the actor component the TickGroup is set instead of the EndTi ...

Packaging will fail if the Nativize Blueprint Assets option is used in a project containing a third-party plugin

UE - Gameplay - Blueprint Runtime - Jul 15, 2016

If a third-party plugin is present in a project that is being packaged with the Nativize Blueprint Assets option turned on, the packaging process will fail because necessary header files in the plug ...