Unreal Engine Issues
Unreal Engine Issues
Actor Components incorrectly appearing mixed with the Scene Component Hierarchy in the Component Tab of the Blueprint Editor
UE - Framework - Blueprint Editor - Dec 19, 2025This is a regression introduced by CL 45871568 in ue5-main branch. The new function FFBlueprintEditorDefaultSortUICustomization::SortSubobjectData() in file "BlueprintEditorSCSEditorUICustomization. ...
"Override Game Mode" only works with "Use Separate Process" enabled
UE - Anim - Sequencer - Jul 13, 2016Override Game Mode only works when Using Separate Process ...
Frequent crash building lighting after sculpting landscape
UE - Graphics Features - Dec 21, 2016Frequent crash occurs once when building lighting after editing a landscape. I added components to the landscape, sculpted, and flattened it. I wasn't able to reproduce the issue again, so the abo ...
Drag and Drop Operations Don't Work Correctly When "Render on Phase" Is Enabled In a Retainer Box
UE - AI Workflows - UI Systems - UMG - Jan 31, 2020Drag and drop operations don't work correctly when "Render on Phase" is enabled in a retainer box. When "Render on Phase" is disabled the drag and drop operations work as expected. In 4.23.1 the dr ...
[Audio Capture] - Editor crashes when activating an Audio Capture component when there are no active input or output devices avilable
UE - Audio - Aug 12, 2022If a device has no available input or output devices, activating an Audio Capture component will cause the device to crash. Occurs in Editor and Runtime. Assertion failed: NumTotalFrames > 0 [File:E ...
FVulkanDynamicRHI::RHIReadSurfaceData incorrect for FLinearColor.
UE - Rendering - RHI - Mar 4, 2024The FLinearColor implementation for FVulkanDynamicRHI is incorrect. FLinearColor stores 32 bit floats in linear space, while FColor stores 8 bit integers encoded with sRGB applied. The implementatio ...
Vehicle Template with Thruster Configuration will be affected by force relative to the distance from the origin
UE - Runtime - Simulation - Mar 18, 2025Vehicle Template vehicle with added Thruster Configuration to its VehicleMovementComponent will be affected by force relative to the distance from the origin. At around 200000 the force is enough to ...
Sprites using a lit material render black in orthographic views
UE - Graphics Features - Dec 23, 2014Sprites using a lit material render black in Orthographic views. Sprites are rendered as expected in Perspective view. ...
Using Show Mouse Cursor and Ejecting Prevents Actors from Being Moved
Tools - Mar 31, 2016When you have the mouse cursor set to show in game, if you use shift+f1 to unlock the mouse, eject, and then attempt to click and move an actor using the transform gizmo, you are unable to do so. S ...
On mouse up appears to be captured when hovering over a widget
UE - Editor - UI Systems - Apr 13, 2016Widget appears to take focus on mouse up and this appears to have functioned differently in earlier versions ...