Unreal Engine Issues
Unreal Engine Issues
Rect Light not rendered correctly when using Virtual Texture as source texture
UE - Graphics Features - Aug 14, 2025Licensees have reported that this issue occurs when rendering from the command line: Rectangular lights with virtual textures do not render when you run the "Render (Remote)" button in the Editor, a ...
Compiling after copy/pasting Event Tick with references into function crashes editor
UE - Gameplay - Blueprint - Aug 29, 2016When 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, 2015Seems 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, 2017The 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, 2018A 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, 2015When 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 ...
Crash when Editing Text in Libraries Category Text field within Material Functions
UE - Rendering Architecture - Materials - Jun 7, 2016When editing the 'Libraries Category Text' field within a Material function a crash occurs. Regression? Yes, this crash does not occur in the 4.11 release. I have attached an image for reference. ...
Crash when attempting to revert a Child blueprint from overriding its parent's function while it also has a child of its own
Tools - Dec 4, 2017When reverting the change of overriding a function from a blueprint's parent, the editor will crash if that blueprint has a child of its own. Regression?: No This also occurred in 4.16 ...
Default Value for a Linear Color input inside of a function is a text field instead of a color picker
UE - Gameplay - Blueprint - Mar 27, 2015The Default value inside of a function for a linear color input is a text field instead of a color picker. ...
Using CommutativeAssociativeBinaryOperator with a BlueprintPure function causes an ensure when adding the function to a Blueprint
UE - Gameplay - Blueprint - May 3, 2018A UFUNCTION that is BlueprintPure and has CommutativeAssociativeBinaryOperator set to true results in an ensure whenever it is shown in the Blueprint Editor. The reproduction steps cover adding the ...