Unreal Engine Issues
Unreal Engine Issues
Linux: UI scale is sometimes not 1.0 on non-high-DPI monitors
UE - Platform - Linux - Nov 7, 2017At the moment, UI scale is calculated on Linux from physical monitor dimensions (obtained ultimately from EDID) and not system scale. The granularity is 0.25, so scale can be 0.25, 0.5, 0.75, 1, 1.2 ...
Enabling Preview Rendering Level Mobile GLES3.1 on Map With Vector Fields Results in Editor Crash
UE - Platform - Mobile - May 21, 2018Reproduced Crash on 4.18.3, 4.19.2, and Main CL 4081612. Licensee states: Based on a quick inspection of the code, it seems FVectorFieldVisualizationVertexFactory::ShouldCache() returns false (req ...
Ensure triggers when undoing change to newly created variable
UE - Gameplay - Blueprint - Sep 28, 2018Ensure will trigger when undo reverts text to default value. "This triggers an ensure because the undo ends up calling SKismetInspector::ShowDetailsForObjects(), which forces the keyboard focus to ...
Component names do not increment correctly when duplicating a component whose name ends with a number
UE - Gameplay - Components - Apr 10, 2019REGRESSION: Yes, this does not occur in 4.21. This also occurred before CL 58120777, which fixed [Link Removed] Duplicating or Copy/Pasting a component whose name ends in a number does not increme ...
Input consumed by a widget's action binding can be skipped if using key modifiers
UE - Gameplay - Input - Oct 29, 2021The following code in UPlayerInput::GetChordsForKeyMapping is at fault for this: !(KeyMapping.bAlt || KeyMapping.bCtrl || KeyMapping.bShift || KeyMapping.bCmd || ActionBinding.KeyEvent == EInputEv ...
Raw Input plugin fails to process some negative values
UE - Gameplay - Input - Aug 22, 2023Came from a UDN: [Link Removed] Proposed fix is to change `FRawInputWindows::ParseInputData` to use this logic instead: ``` ... USHORT BitSize = ValueCapsBuffer[iValue].BitSize; LONG SizeMask ...
Crash on startup with a Blueprint deriving from an abstract class with a SpriteComponent
Tools - Feb 7, 2018Appears to be an issue with load order and the timing of when we populate the 'ShowSpriteCommands' and 'SpriteIDToIndexMap' containers, which we assert on if they're not the same size. The original ...
Instanced Static mesh does not LOD at the same screen distance as standalone mesh
UE - Graphics Features - Nov 11, 2014DESCRIPTION: When using instanced static mesh component in a blueprint that has LODs the normal distances for LODs are not reflected for the instanced static mesh component. AH Post: https://answe ...
Visibility of World Outliner doesn't affect skylight
UE - Graphics Features - Nov 27, 2018Visibility of World Outliner doesn't affect skylight. But it affects other kinds of lights like Point Light, Directional Light. I found that USkyLightComponent::CreateRenderState_Concurrent() doesn ...
Param usage bug when using switch params
UE - Rendering - Architecture - Materials - Mar 28, 2022From the ticket: In a material instance using the attached master material if A is TRUE and B is FALSE I expect to be able to configure param C in the UI. However param C is shown only when Useswi ...