Unable to Select Item from list in blueprints under certain conditions

UE - Editor - UI Systems - Slate - Feb 25, 2020

[Image Removed]  This happens with not only enums, but any combo box. Another example is the "Create Event" where you can select a matching function. This is a problem with how this slate widget ...

Subobject pointer may be null when attempting to access a nested BP added property in a BP script or python

UE - Framework - Blueprint - Mar 3, 2023

This is likely something going wrong in the Blueprint Editor utilities function calls or something like that. Obviously this works as expected in the Subobject Editor itself, otherwise no nested BP ...

Rare crash in FWidgetAnimationState::OnStopped

zComponent - Archive - Jun 22, 2026

The FWidgetAnimationState::OnStopped delegate is getting created when the widget anim state is being destroyed and then queued to be executed later. Something is happening between the queue and the ...

Extreme Brightness using SLS Specified Cubemaps for Skylights in VR

UE - Graphics Features - May 5, 2017

Surfaces are getting washed out or over brightened when using a Cubemap on a Skylight in VR. Tested 4.15.2 - 3416026 : Does not occur 4.16. p2 - 3415565: Occurs ...

Stationary and Movable Skylight with reflection captures in Forward Rendering have inverted capture for geometry

UE - Graphics Features - Oct 25, 2016

When using a Stationary or Movable Skylight with some reflection captures that are not using the High Quality Reflections (material setting) will have what appears to be an inverted mask for the ref ...

[CrashReport] Crash trying to destroy an uber graph frame because the RawPointer is still set

UE - Gameplay - Blueprint - Jul 21, 2017

This is a trending crash in the 4.17 Preview. Users have not provided any descriptions of their actions when the crash occurred. Source Context 2408 uint8 *Data = (uint8*)Dest; 2409 ...

Assets Using the SpeedTree in a material will render static shadows in Reflection Captures

UE - Graphics Features - May 26, 2015

When using a SpeedTree asset in a scene with a Reflection Capture actor the baked static shadow from an asset will be captured, even though the asset will not due to using the SpeedTree node in the ...

Translucent Materials do not work well with Depth of Field

UE - Graphics Features - Apr 10, 2015

Depth of Field do not work well when using a translucent material, even if the material has no opacity set. Image attached as reference. Light brown colored mesh is translucentGray mesh is opaque ...

Gameplay Debugger is hijacking the Canvas

UE - AI - Jul 14, 2015

The bug users reported in the attached thread is the one we talked about earlier that results in Gameplay Debugger hijacking the Canvas and not allowing anyone else to print on it (most notably the ...

Launching onto HTML5 fails due to a TypeError

UE - Platform - Mobile - Oct 6, 2016

Launching onto HTML5 will fail during the compiling stage. The following error will occur when the project is launched in the browser and begins compiling: Uncaught TypeError: Browser.mainLoop.sche ...