Unreal Engine Issues
Unreal Engine Issues
When the engine version updated, partial data of TMap/TSet type of DataTable is missing
UE - Foundation - Core - Jan 7, 2019When updating to 4.21, Element previously added to DataTable is missing. This only occur when you move to 4.21. If it change from 4.19 to 4.20, DataTable will keep data. it can restore broken data b ...
BuildGraph builds some tools for Win32 even if Win32 is excluded from the build
UE - Foundation - Cpp Tools - Jan 16, 2019When creating a local binary build of the Engine using the BuildGraph, there are several tools that are built for Win32 even if Win32 was specifically excluded from the BuildGraph (ie. -set:WithWin3 ...
UMG Animations Scale Retainer Boxes When Only Translating them
UE - Editor - UI Systems - Feb 28, 2020When translating a retainer box in an UMG animation the scale of the retainer box is also affected. Attached is a 4.23 example project. Found in 4.24.3 CL#11590370 Reproduced in 4.23.1 CL#9631420, ...
When setting in PreviewGameLaunguage, the package application always adds "culture" to the argument
UE - Editor - UI Systems - Localization - Nov 12, 2020Whenever packaging project from Launcher with a PreviewGameLanguage set, the culture="preview language" is added to the UE4CommandLine.txt file. Can avoid this issue by setting "None" in PreviewGam ...
Lumen Reflections in Stereo are broken after Nvidia GPU Driver Update
UE - Platform - XR - Jul 29, 2024After updating the NVidia graphics driver to v.552.74+, reflective/mirror materials appear broken and render with black and white lines in VR mode if they are in a level with a Post Process Volume w ...
Some reset to default buttons not appearing for UMG Appearance
UE - Editor - UI Systems - Aug 19, 2016Some reset to default buttons not appearing for UMG Appearance. This seems to only affect the Categories like Brush, Style or categories under Style like Normal/Hovered. Individual properties rese ...
Game window renders transparent when launched with -game -log commands on Mac
UE - Platform - Apple - Oct 31, 2016This is only occurring on Mac and only in OSX 10.12. This is also a regression from 4.13 Right clicking in the dock, Show all windows, and selecting the game window does NOT fix the issue. Runnin ...
Go To Definition fails quietly for Native functions with no definitions
UE - Gameplay - Blueprint Editor - Aug 11, 2017Go To Definition fails for Set and Map Utility nodes (does not seem to affect Arrays). A warning similar to the following appears in the output log:LogSelectionDetails: Warning: NavigateToFunctionS ...
Project fails to build for iOS from Windows when Generate .uedebugsymbols is enabled
UE - Platform - Mobile - Jan 9, 2018This does not occur in 4.18.3 at CL 3823254UATHelper: Packaging (iOS): ERROR: System.IO.DirectoryNotFoundException: Could not find a part of the path 'D:\Epic Games\UE_4.19\Engine\Binaries\ThirdPa ...
Material Set to Additive Blend Mode Does Not Render Correctly in Planar Reflections
UE - Graphics Features - May 2, 2018This behavior has been observed in 4.17, 4.18, and 4.19 release versions. Per Licensee: In our game they player's hands are represented by glowing blue orbs and in planar reflection surfaces they ...