Unreal Engine Issues
Unreal Engine Issues
Code based FPostProcessSettings variables are not displayed properly in the editor
Tools - Sep 6, 2017When a variable of FPostProcessSettings is created, the variable itself is missing in editor with the actual post process settings fully expanded instead. Additionally, the fully expanded settings ...
NaN is handled differently when clamped on Windows and Android/iOS
UE - Platform - Mobile - Oct 18, 2017NaN (Not a Number) is handled different when clamped on Windows and Android/iOS. If you clamp a NaN (Acheived by -3 ^ 0.2 in the reproduction project) from 0.0 to 1.0 and then print the result, you' ...
Containers of Instanced Subobjects don't inherit as expected
UE - Gameplay - Blueprint Editor - Jul 6, 2018Changes made to array containers in the parent Instanced Subobject Blueprint does not affect the child. Working in 4.18.3 Broken in 4.19.2 Tested in 4.18.3(CL - 3832480), 4.19 (CL - 4033788), 4. ...
Widget component navigation does not work in Standalone
UE - Editor - UI Systems - Jun 14, 2019When running a standalone build, focus navigation doesn't work on widgets within a world-space widget component. This may be fallout from [Link Removed], which parented the widget component's virtua ...
BP multi-level inheritance does not correctly inherit 'Static' mobility
UE - Framework - Blueprint - Sep 8, 2022User reported an issue of a mesh not being visible when a project has multi-level blueprint inheritance. After reproing, I believe the root cause is DefaultSceneRoot of the grandchild BP class not c ...
Commandlet Exits With Code -1073741819 and Exception FPlatformMisc::RequestExitWithStatus(1, 3, WindowsPlatformCrashContext.EngineUnhandledExceptionFilter)Engine exit requested (reason: Win RequestExit; note: exit was already requested)
UE - Foundation - Apr 9, 2025When a commandlet is run it successfully completes but does not terminate the engine correctly. It appears that multiple requests are made to terminate the engine process these subsequent engine ter ...
New Material Thumbnails are appearing distorted
UE - Rendering Architecture - Materials - Jun 1, 2016When creating a new material the thumbnail will start out as the default material sphere but then quickly appear distorted, almost like its zoomed in really close. This does not affect already creat ...
Duplicated Blueprint Causes Incorrect Target for Events
UE - Gameplay - Blueprint - Oct 15, 2015Duplicating a blueprint that has a node hooked up to BeginPlay causes the BeginPlay in the duplicate blueprint to target the original blueprint. This does not appear to affect functionality. Occur ...
Scrolling the mouse wheel slowly on Mac does not have any effect in the editor
UE - Platform - Apple - Jan 19, 2017REGRESSION No, occurs in 4.14.3 On Mac, scrolling slowly (one or two notches) does not have any affect in editor, whereas on the Windows, this has full effect. This was seen in editor (with scroll ...
Packaging a DLC Plugin Fails with "Couldn't Update Resources" Error
UE - Foundation - Core - Cooker - Mar 14, 2017Attempting to package a plugin as DLC is failing with the following error message: Program.Main: ERROR: AutomationTool terminated with exception: System.Exception: Couldn't update resource However ...