Screen Space Widget Component offset in Editor Viewport when using Windows Scaling

UE - Editor - UI Systems - Jul 23, 2018

Using Windows scaling above 100% now causes Screen Space 3D Widgets to be offset. (Pressing F11 for fullscreen or launching will cause widget to appear in correct location) ...

Malformed command sent to UAT if BuildCookRun command ends with a trailing slash ("\")

UE - Foundation - Cpp Tools - Feb 14, 2019

Including a trailing slash ("\") at the end of a BuildCookRun command sent to UAT results in UAT receiving a malformed command. If the command ends with a slash, the resulting command that UAT recei ...

The Find Node Can Crash on Compile After a Blueprint Compile Error

UE - Gameplay - Nov 21, 2019

The "Find" node can cause a crash if the a map with a struct value changes type while connected, is disconnected and reconnected. Compilation fails and crashes the engine. Found in 4.23.1 CL#963142 ...

Invalid Landscape Normals at component boundaries and subsections In Packaged Build

UE - Graphics Tools - Terrain - Oct 31, 2025

In UE 5.6, heightmap texture compression was introduced. The original implementation did not consider duplicate pixels along subsection and shared textures (multi-component) boundaries. As a result, ...

Crash when saving after resetting Instanced array element via Property Matrix on placed actors

UE - Editor - Nov 21, 2025

When an Actor Component contains an Instanced UObject array marked EditDefaultsOnly, adding a new element to the Blueprint defaults correctly updates the Blueprint and its own Property Matrix. Howev ...

Math Expression Node produces error if it calls a variable located within a hidden variable category

UE - Gameplay - Blueprint - Jan 29, 2016

The math expression node in blueprints does not recognize variables that have been hidden within a blueprint category. ...

first struct variable not shown by Intelisense

UE - Foundation - Core - Feb 18, 2015

When invoking a custom struct, the first listed variable will not appear in the Intelisense window. ...

Components spawned at runtime do not take Radial Damage if simulating physics

UE - Gameplay - Mar 16, 2015

Components spawned at runtime do not take Radial Damage if simulating physics. ...

Combo Box (String) does not work when applied to a 3D widget

UE - Editor - UI Systems - Apr 16, 2015

Users are not able to get the drop down menu to show up when the combo box is applied to a 3D Widget (World Space) ...

Planar Reflection with Exponential Height Fog flickers on iOS

UE - Platform - Mobile - Oct 28, 2016

Planar Reflections have noticeable gaps in the reflection of the exponential height fog for the scene that will flicker as the camera moves. Attached ipa link and test project. [Link Removed] Te ...