Unreal Engine Issues
Unreal Engine Issues
NPC - Texture Sample DI does not work on Niagara Parameter Collections
UE - Niagara - Nov 8, 2023Texture sample DIs no longer work when used with Niagara Parameter Collections. This seems to affect Volume Texture DIs based on customer reports, but I have not confirmed this. ...
Restarting Project Resets Scoring Equation in EQS
UE - AI - May 9, 2016The user is experiencing his Scoring Equation being reset whenever he restarts his project. Found in 4.12 Preview 2 binary. Reproduced in 4.11.2 binary and 4.13 2967371. ...
Auto Exposure Compensation Curve issue when switching from Histogram to Manual
UE - Rendering - Architecture - Feb 21, 2024When switching the Camera's Exposure Metering Mode from Histogram to Manual, there is a single-frame flash. The Licensee has a proposed code change that would fix this issue. Also found in 5.4, CL 3 ...
Ambient Occlusion decals ignore Receive Decals setting on meshes
UE - Graphics Features - Feb 13, 2020Adding an ambient occlusion decal material to a decal affects objects with "Receives Decal" disabled. Tested in: 4.23.1 CL#9631420 4.25 CL#11341939 ...
Post processing rendering artifacts Nexus 6
UE - Platform - Mobile - Dec 3, 2015When you push a mobile targeted project to the Nexus 6, the rendering is all sorts of wrong. When you hover over to where the items are, the screen goes black. There is also a large black or cyan sp ...
Cannot resize comment box when new comment is created on top
UE - Rendering - Architecture - Materials - Apr 27, 2017Cannot resize comment box when a new comment is created on top. The resizing affects the bottom right corner. This issue is dependent on how the comment is added if comment 1 is highlighted and a ne ...
Not including StarterContent/Templates prevents engine .cpp files from appearing in project VS
UE - Foundation - Core - May 26, 2016If either/both of the "Starter Content" or "Template and Feature Packs" checkbox's are not selected when installing/updating 4.12 from the Launcher, the engine .cpp files will not show up in Visual ...
depth calculation is not functioning properly on mobile ES 3.1 preview
UE - Platform - Mobile - Feb 21, 2023In 5.1.1, the depth calculation is not functioning properly on mobile ES 3.1 preview, resulting in reflections occurring in areas where they should not. When checking with RenderDoc in ES 3.1 Previ ...
Material expression "FloatToUInt" can trigger a check() when input is invalid
UE - Rendering - Architecture - Materials - Mar 11, 2026When a "Float to UInt" Expression is used in a Material Graph with a valid direct input connection that fails to evaluate, function UMaterialExpressionFloatToUInt::Compile() does not catch the input ...
Cursor radius set via FSlateApplication::SetCursorRadius is ignored during FHittestGrid hit testing
UE - AI Workflows - UI Systems - Slate - Mar 16, 2026The cursor radius configured through FSlateApplication::SetCursorRadius() is not respected during Slate hit testing. The radius value is correctly stored in FSlateApplication and passed into FHittes ...