Mouse Up Detection lost inside Scrollbox when dragging

UE - Editor - UI Systems - Feb 28, 2017

Mouse Up Detection lost inside Scrollbox when dragging and releasing inside. This issue occurs when trying to detect on mouse up for a scroll box Regression: This issue also occurs in 4.14.3 ...

Crash when launching Google VR project

UE - Platform - XR - Dec 12, 2016

Attempting to launch a packaged Google VR game on android causes the game to crash. This has occurred on two other devices. This occurs in Main as well as Dev-VR. ...

DebugDrawHelper memory leak in editor

UE - Graphics Features - Aug 10, 2021

Media Player can't continue to play after the progress bar is dragged.

UE - Media Framework - Nov 15, 2023

This bug occurs in 5.3 version. It's ok in 5.2 version. ...

Duplicate subobjects when you attach to an OptionalDefaultSubobject

UE - Framework - Components - Jun 3, 2022

I believe that this is happening because of a problem within USubobjectDataSubsystem::FindOrCreateAttachParentForComponent where it is creating duplicates of the character mesh because the "TestScen ...

Destructible mesh loses collision and physics after packaging in 4.18.2

UE - Simulation - Physics - Destruction - Jan 17, 2018

Destructible Meshes are losing collision and physics after a project has been packaged. They will work normally when running PIE. ...

Crash on attempt to clear(NullifyInstance) of duplicated Hierachial Instanced Static Mesh

Tools - May 31, 2019

When creating an C++ Actor with a Hierarchical Instanced Static mesh. when duplicating such an actor with mesh instances, the instances are not visible on the level. In this state, calling HISM comp ...

Inaccurate Metal shader warning message in the Editor when CommandLineTools is set to be the default compile tool on Mac

Tools - Nov 13, 2017

When CommandLineTools is set as the default tool, an inaccurate warning message is displayed when opening the Editor that states that Xcode is too old to compile Metal shaders, even if the latest ve ...

In Editor, Blueprint resources are not freed up when the Blueprint is closed

UE - Framework - Blueprint - Feb 16, 2024

It appears that the preview scene used to render thumbnails is not destroyed after a thumbnail is rendered, even after the blueprint editor is closed and GC is run. Also found in Release-5.4, CL: 31 ...