In BP/Python Editor Utilities, function SetEditorProperty() unexpectedly fails for Actor Reference Properties on External Actors.

UE - World Creation - Worldbuilding Tools - May 19, 2024

As part of the Python and Editor Scripting Tools, it is possible to programmatically set variables in actor instances of the current level just like when using the Details Panel in the Level Editor. ...

'prefix parameter names' checkbox in a material function's settings does nothing.

UE - Rendering Architecture - Materials - Nov 14, 2024

Prefix Parameter Names checkbox does not work as expected, and the Group names are unmodified. The value "UMaterialFunction::bPrefixParameterNames" does not appear to be used anywhere in the Engine ...

Local Vector variables in functions do not save the Y and Z values

UE - Gameplay - Blueprint - Mar 12, 2015

Local Vector variables in functions do not save the Y and Z values. Possibly connected: after entering the X value, pressing Tab does not move to the Y value. Tabbing from there works as expected. ...

Wireframe persists Switching from 'Quad Overdraw' to 'Stationary Light Overlap' Visualizers

Tools - Aug 22, 2016

When switching from 'Quad Overdraw' to 'Stationary Light Overlap' in the Optimizations view mode visualizers, the wireframe generated in the overdraw visualizer persists into the overlap visualizer. ...

Dynamic light settings in Persona viewport cause edges to appear hardened

UE - Gameplay - Oct 11, 2016

Dynamic light settings in Persona viewport cause edges to appear hardened. See attached image, but also images in the Answerhub post. ...

Compiling after copy/pasting Event Tick with references into function crashes editor

UE - Gameplay - Blueprint - Aug 29, 2016

When pasting nodes with references to an event tick into a function then compiling the editor will crash. Regression from 4.12.5 Binary CL-3039270 Edit - TravisL: I was able to repro this crash o ...

Indirect lighting cache generates points inside interpenetrating static meshes

UE - Graphics Features - Jun 10, 2015

Seems to be an issue with the indirect lighting cache where if you have interpenetrating static meshes (for example static mesh rocks that make up the ground), there are cases where the cache points ...

Crash occurs when building lighting on Mac

UE - Graphics Features - Jan 4, 2017

The Unreal Editor will crash whenever you try and build lighting. Crash does not occur in: 4.14.2 - 3241561 ...

Utility functions in UEdGraph_ReferenceViewer are no longer exposed

UE - Editor - Content Pipeline - Content Browser - Oct 29, 2018

A number of utility functions are provided in UEdGraph_ReferenceViewer for building menu extenders. This class was originally included in the engine as part of the ReferenceViewer module, but was re ...

Stationary light shadow are occluded for additional players in split-screen mode

UE - Graphics Features - Jun 17, 2015

When using split screen multiplayer the second or more players that are added for split screen will have their characters shadows occluded when the bounds are not within view of player 1. Setting ...