Inside the ViewportToolBar, the "Click to Expand" ComboButton works incorrectly with Display Scaling

UE - Editor - Applied Usability - Mar 12, 2025

When Display Scaling is applied (e.g., 125%) and the Level Viewport is resized, the ComboButton in the SViewportToolBar does not behave as expected. Normally, the ComboButton hides when there is in ...

Collision is not generated for Planes

UE - Gameplay - Jan 30, 2017

Single Planes do not generate collision on import or with the Convex Decomposition window. Workaround: box Collision can be added via the Collision > Add Box Simplified Collision. I checked as fa ...

Package build fails after disabling VR plugins

UE - Platform - XR - Mar 27, 2017

Package build fails after disabling VR plugins and launching the project The error message that pops up is: Fatal error: [Link Removed] [Line: 353] Missing global shader FPixelShaderDeclaration, P ...

[CrashReport] UE4Editor_CoreUObject!UStruct::IsChildOf() [class.h:373]

UE - Gameplay - Jan 24, 2018

Comments from users:I pressed Play while having a directional light selected in-editorChanged landscape collision mip level. ...

Not having sufficient permissions to save Rhino file after importing

UE - Editor - Content Pipeline - Datasmith - Importer - Aug 8, 2018

When importing a Rhino 6 file that has a long filename, an error appears stating that there are insufficient permissions to save the file. ...

Text cursor movement with arrow keys does not work in blueprint context menu if search query is empty

UE - Editor - UI Systems - Slate - Aug 20, 2018

When using the text search in Blueprints the arrow key functionality is lost if there is a misspelling or when a search produces no results. This worked normally in 4.19 and below. ...

Vehicle Game - Input Interference when Controller Plugged in

UE - Gameplay - Input - Nov 2, 2018

GenericUSBController Axis values interfering with input when Xbox Controller is active. (Generic Inputs were added for Switch Support) ...

Scroll bar thickness is unaffected when set below 4

UE - Editor - UI Systems - Apr 9, 2019

Scroll bar thickness is unaffected when set below 4. There appears to be a minimum size in place that prevents the scroll bar from being set to a size lower than 4 ...

Crash when creating an animation

UE - Editor - UI Systems - Jun 7, 2019

The editor crashes when trying to add an animation key frame for the row fill setting for a grid panel ...

Deprecated Event Dispatchers on components do not warn on their attached actors

UE - Gameplay - Blueprint Editor - Apr 5, 2021

[Link Removed] ...