References stored in deleted UProperties stick around in a Blueprint Class

UE - Gameplay - Blueprint - Apr 25, 2017

If a UProperty that stores a reference to an asset is deleted, the reference to that asset lingers in any Blueprints that had a reference stored in that UProperty. This can lead to issues when the r ...

World Context node returns inaccurately in PIE/Standalone

UE - Gameplay - Blueprint - Sep 11, 2017

When a blueprint function library reaches a "World Context" node, the result returned by the node is invalid / null in Standalone mode. Additionally, the node will occasionally report as invalid in ...

C++ Classes subfolders cannot be viewed in CB if Sources Panel is closed

UE - Editor - Content Pipeline - Content Browser - Sep 14, 2017

When a new class is added to a subfolder, by entering the folder name in the Add C++ Class - Path field, navigating to the new subfolder doesn't work if the Content Brower's Sources Panel is closed ...

Multi-line text is not an option for arrays of text

Tools - Sep 20, 2017

When using the Multi-line option for a text variable, this option is no longer present when the variable becomes an array. It is unsure if this is intended behavior or not. This issue does not appea ...

Editor Crashes When Reopened Project's Level that Contains Vertex Painted Asset is Opened

Tools - Apr 17, 2018

Editor crashes when asset is imported in as a skeletal mesh, brought into a level, vertex painted using the paint tab under modes, all assets are saved, project is reopened, then level is reopened. ...

Navigating the Editor on Linux with a Wacom Tablet is difficult

UE - Platform - Linux - Sep 17, 2018

Movement is quite sporadic and jumpy when using a Wacom Tablet to navigate the Editor on Linux. The Editor pans and zooms in and out really quickly with the slightest of movements. This was report ...

Virtual Bone effect is lost after re-importing mesh

OLD - Anim - Dec 31, 2018

After setting up a Virtual Bone on the skeleton and having it drive a Skeletal Control Node in an Animation Blueprint. Reimporting the skeletal mesh will cause the setup in the Anim BP to revert bac ...

UMG Crashes When Using "Create Dynamic Material Instance" With An Optional Name Twice

UE - Editor - UI Systems - Feb 17, 2020

When using an Optional Name parameter in Create Dynamic Material Instance while using the same Optional Name twice in UMG the engine crashes. I have tested this in a actor blueprint that applies th ...

Anim Graph will hang if the Draw Debug Sphere and Set node are connected and compiled

UE - Anim - Runtime - Anim Blueprints - Jun 8, 2023

anim blueprint hangs when compiled. Probably a cyclic issue when compiling. A workaround is to add a delay of any time between the set node and the Draw Debug Sphere node. Repros in the following v ...

Transform gizmo is not working when nearclipplane in project settings > Engine > General settings is 0.00001

UE - Graphics Features - Mar 23, 2020

Setting near clip plane like 0.00001 makes unable to move with transform gizmo. if user set value to 0.0001, it is no longer reproduced. it should clip value like 0.00001 ...