Unreal Engine Issues
Unreal Engine Issues
UV Offset Effect Material in RetainerBox Causes Visual Artifacts in Editor Preview
UE - Editor - UI Systems - UMG - Apr 22, 2025When a UV Offset is applied in a RetainerBox effect material, visual artifacts appear only in the editor — not at runtime — if a widget with a dotted preview outline (like CanvasPanel) is placed dir ...
Changing the value of a parent class variable does not update after hot reload
UE - Gameplay - Blueprint - Mar 4, 2015When the value of a variable defined in a parent class is changed inside of the child class, the value is not updated in a BP of the child after hot reloading. ...
Transforming inherited component in editor will crash
Tools - Mar 6, 2015When a component inherited from code is transformed in any way with the viewport controls (arrows, rotation sphere, scale boxes) the editor will crash. Using the value boxes to set the transform do ...
Editor crash after attempting to create layer info in new landscape window
UE - LD & Modeling - Terrain - Landscape - May 7, 2015Attempting to create landscape layer info from within the new landscape creation window crashes the editor. Workaround: create the landscape, switch to paint mode, create layer info in paint mode w ...
20 FPS performance drop between 4.7.6 and 4.8 on devices rendering Metal only
UE - Platform - Mobile - Jun 22, 2015User reported a considerable performance drop on iOS between versions 4.7.6 and 4.8. I was able to reproduce this perf drop using the steps he provided. ...
Post Processing continues to affect Sprites after project setting defaults are disabled and all volumes and cameras' settings are disabled
UE - Graphics Features - Nov 19, 2014After disabling the defaults in Project Settings > Rendering > Default Postprocessing Settings, disabling all GlobalPostProcessSettings volumes, and setting the Post Process Blend Weight in the play ...
When walking off of angled geometry the player pawn will fall off of the edge horizontally instead of falling
UE - Gameplay - Player Movement - Nov 26, 2014When walking off of angled geometry the player pawn will fall off of the edge horizontally instead of falling. Even with all possibly related values changed in the character defaults, the player wi ...
Startup Movies not Copied to Content/Movies Directory in Content Browser
Tools - Oct 5, 2016Startup movies are not being copied to the Content/Movies directory within the Content Browser. This can be confusing to users as it is not editable, but still functions correctly as a startup movie ...
Rotated component made into root displays incorrectly in the blueprint editor
UE - Gameplay - Blueprint - Jan 25, 2017Rotated component made into root displays incorrectly in the blueprint editor. Closing and reopening the BP editor corrects the displayed root component. ...
Mobile Preview - Custom Stencil 4.23 Regression
UE - Platform - Mobile - Oct 25, 2019Regression when using custom stencil with in-editor mobile preview. This does NOT reproduce in MAIN at CL 9730599 ...