Unreal Engine Issues
Unreal Engine Issues
Add Substrate Material Support to Lumen Performance Overview
UE - Graphics Features - Substrate - Feb 10, 2025There is a discrepancy when inspecting Substrate materials in the Lumen Performance Overview. Compared to viewing non-Substrate materials the overview show all surfaces in red indicating that Lumen ...
Virtual Texture Collection Indexing Not Working
UE - Rendering Architecture - RHI - Oct 30, 2025Textures at an index, other than 0, cannot be sampled from a Virtual Texture Collection in a material. When using the Texture Collection and Texture Object From Collection material nodes, with a Vir ...
[CrashReport] UE4Editor-Core!static void PureCallHandler() [WindowsPlatformMisc.cpp:477]
UE - Foundation - Core - May 8, 2020Generated from CrashReporter Error Message: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Core/Private/Windows/WindowsPlatformMisc.cpp] [Line: 475] Pure virtual function bei ...
Crash opening blueprint when a node class has been removed (e.g., anim blueprint with Ragdoll node with Immediate Mode plugin disabled)
UE - Gameplay - Blueprint Editor - Jan 26, 2017Crash occurs when the user attempts to open an anim blueprint containing the Ragdoll node, when Immediate Physics is disabled. ...
Setting "Is Enabled" via the animation timeline in UMG does not appear to work at runtime
UE - Editor - UI Systems - Jun 10, 2016Setting "Is Enabled" via the animation timeline in UMG does not appear to work at runtime ...
r.SupportPointLightWholeSceneShadows Set to False Causes Crash When Trying to Place a PointLight
UE - Graphics Features - Jul 25, 2018If you disable Support PointLightWholeSceneShadows and try to place a point light in a level the editor will crash. Current work around is put shadows to low from engine scalability settings. Wor ...
Modules with Emitter Life functioning incorrectly
UE - Graphics Features - Jan 7, 2016Setting the Emitter Time module with an emitter that is not set to loop will result in an incorrect render of the particles past the emitter duration. Emitter Duration set to 3 seconds:[Image Remov ...
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 ...
Scroll Bar does not Stay "Anchored" to Bottom While Data Generates in Window
Tools - Jun 6, 2016The scrollbar no longer remains anchored to the bottom of the Output Log while more lines are propagated during the packaging process/ Regression: this does not occur in previous versions of the En ...
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 ...