Selecting a bone inside of the Persona's Skeleton tab while running DX12 causes a crash

UE - Graphics Features - Dec 9, 2015

When running in Dx12 on Windows 10, the editor will crash if you click on a bone that you wish to edit in the Skeleton tab of Persona ...

Noticeable Audio Pop when Opening a New Level after Spawning and Playing a Sound with Volume Multiplayer at 0.0

UE - Audio - May 18, 2017

A licensee is reporting an audible pop when transitioning between levels with a sound spawned and playing at volume multiplier of 0.0. The original report was a discrepancy between the old audio en ...

Instance Static Mesh element not rendered if array element is removed and another is added

UE - Gameplay - Dec 5, 2017

Instance Static Mesh element is not rendered if array element is removed and another is added. The collision is still present and the instance count will still register as if the non-rendered elemen ...

Collision properties of a component cannot be changed in Viewport

UE - Simulation - Physics - Apr 26, 2018

When using any collision preset other than QuerryOnly, the collision properties cannot be changed when the actor is in the Viewport. ...

Packaging failed with disabled plugin

UE - Foundation - Cpp Tools - Oct 9, 2018

Disabling any plugin causes packaging failure. No repro in 4.19 Also occurring when Disabling all platforms except for windows and changing configuration from development to shipping. ...

Scrollbox under multiple retainerboxes doesn’t scroll correctly with PIE

UE - Editor - UI Systems - Aug 14, 2019

When the scrollbox as the child of multiple retainerboxes, the scroll isn't smoothing. It can see issue with PIE only. If it run with standalone (or package build) is fine. In SScrollBar::ExecuteO ...

PIE window does not match what was set in the New Viewport Resolution setting

Tools - Oct 24, 2019

Setting the resolution of PIE to 4K Ultra HD results in the new PIE window going very far out of the bounds of 4K. If you are using two monitors the PIE window will bleed over a good bit into the ot ...

Painted Vertex colors are not retained when using "Convert Selection to Blueprint Class" in Child Actor mode

UE - Gameplay - Blueprint - Aug 25, 2020

From the User Submission: I spent some time poking through the FComponentInstanceDataCache code and noticed that there is no component instance data saved/applied for'native' component types, so si ...

Streaming Virtual Texture UDIN V Offsetting

UE - Editor - Content Pipeline - Import and Export - Jan 31, 2024

UDIN virtual textures appear to have row 0 (U coordinate [0 - 1) swapped to the other side of the texture vertically. ...

Substrate- black outline appears when using sharp contrast mask to blend slabs

UE - Graphics Features - Oct 4, 2024

Substrate materials have a thin border of black pixels between slabs. These lines can be made more apparent by changing the Diffuse Albedo color of the two slabs to pure white. This will remove the ...