Physics Constraint Component loss of accuracy

UE - Simulation - Physics - Mar 6, 2025

Physics Constraint Component has lost accuracy between Unreal versions 5.2 and 5.4 (and up). When measuring the exact distance between rigid bodies constrained by a Physics Constraint Component, the ...

Difference in LODs between PIE and editor

UE - Rendering Architecture - Dec 7, 2023

It is possible to repo this without the exact steps, but that leaves it ambiguous if the camera moved when exiting PIE or not. ...

Landscape Layer Masks can't be imported

UE - Graphics Tools - Terrain - Landscape - Jan 3, 2023

Repro Rate: 3/3 This is a live issue that has been tested to occur in //UE5/Release-5.1 at CL 23058290. This is also confirmed to not be a regression since this issue also occurs in //UE5/Release- ...

Assertion with Geometry Collection when play in simulate mode

UE - Simulation - Physics - Destruction - Feb 5, 2021

Error message:Assertion failed: !HasAttribute(Name, Group) [File:D:\CHAOS\Engine\Source\Runtime\Experimental\Chaos\Public\GeometryCollection/ManagedArrayCollection.h] [Line: 121] ...

Dynamic skylight doesn't apply to StaticMeshes

UE - Graphics Features - Feb 13, 2020

Overriding MacroUV causes stretching Material

UE - Graphics Features - Dec 15, 2014

While working on an issue for a user using MacroUVs, I noticed that entering any value into the Required Module with Override Default Macro UV toggled true will cause the Material to stretch and dis ...

Reparenting a UserWidget within that widget's events can break links between UWidgets and their SWidget.

UE - Editor - UI Systems - Nov 28, 2016

Reparenting a widget within it's own event can cause that widget's tree to have null references instead of references to slate widgets. This happens because when a widget is reparented, we remove a ...

Sound Wave Actions Menu Closes Automatically When Changed to Columns View

Tools - Dec 15, 2017

After changing the view to columns (by going through Right click < Create Dialogue < View Options < Columns) the Sound Wave Action menu will close out automatically before any options can be selecte ...

Variant Thumbnails are washed out

UE - Editor - Content Pipeline - Variants - May 11, 2023

I think somewhere in Thumbnail Generator::Generate Thumbnail FromTexture() is applying this washout. ...

Crash when widget is replaced and no longer valid

UE - Anim - Sequencer - May 25, 2023