Crash occur when using AddSpawnableFromClass with BlueprintGeneratedClass specified

UE - Anim - Sequencer - Aug 13, 2019

BlueprintGeneratedClass is not based UBleupint. So the following code is failed. bool UActorFactoryBlueprint::PreSpawnActor( UObject* Asset, FTransform& InOutLocation) { UBlueprint* Blueprint = ...

Character Jump Height is dependent on framerate

UE - Gameplay - Player Movement - Jul 17, 2020

Character jump height is dependent on framerate, where lower framerate can result in reduced jump height. ...

Widget Interaction component cannot be moved while the game is paused

UE - Editor - UI Systems - Nov 14, 2016

Widget Interaction component cannot be moved while the game is paused. The widget interaction component stops following the mouse when the game is paused (when source is set to mouse) ...

Event On Animation Finished for UMG does not fire off until a few seconds after the animation in complete

UE - Anim - Sequencer - Oct 19, 2015

The event "On Animation Finished" does not fire off until a few seconds after the animation is over. ...

Mouse acts as touch in content browser after alt+tabbing out of a PIE session that contains Virtual Joy Sticks

Tools - Jul 6, 2017

If the user alt+tabs out of the editor while using a virtual joy stick in pie, it will cause the mouse to use touch inputs. One example of this would be clicking the content folder which will then t ...

Performance issues when a Render target is added to Spectator screen (VR) in a packaged game

UE - Platform - XR - Feb 20, 2019

Performance issues when a Render target is added to Spectator screen (VR) in a packaged game ...

Smart Nav Links created via Load Level Instance are broken, but Simple Nav Links are fine

UE - AI - May 20, 2019

Maps brought in via Load Level Instance that contain Nav Link Proxys configured to use the Smart Link instead of the Simple Link end up creating a link at the center of the world instead of their ac ...

InputModeUIOnly Causes User Interface to Become Unresponsive When Entering Fullscreen on Macs Only

UE - Platform - Apple - Dec 6, 2016

The licensee is setting their game to InputModeUIOnly and ShowMouseCursor in the HUD blueprint resulting in the user interface becoming unresponsive when entering fullscreen on a Mac but not on a PC ...

If the game mode is set to game only and "Set Show Mouse Cursor" is set to true some click events appear to get dropped

Tools - Jun 15, 2016

If the game mode is set to game only and "Set Show Mouse Cursor" is set to true some click events appear to get dropped ...

The Compile Single File option in UnrealVS fails if there is a space in the path to the Engine's root folder

UE - Foundation - Cpp Tools - Oct 3, 2018

The Compile Single File option in UnrealVS fails if the Engine is located in a directory where there is a space somewhere in the path to the Engine's root directory. REGRESSION: No ...