Unreal Engine Issues
Unreal Engine Issues
Reflections of Masked Materials incorrect with Lumen HWRT and Max Refraction Bounces > 0
UE - Graphics Features - Lumen - Dec 18, 2025Lumen HWRT Reflections of Masked Materials are incorrect when "r.Lumen.Reflections.HardwareRayTracing.Translucent.MaxRefractionBounces" is greater than 0. The same issue occurs if the Post-Process V ...
HISM(Hierarchical instance static mesh) has lightmap problem after building lighting
UE - Graphics Features - Aug 5, 2018HISM has lightmap issues after build lighting ...
Soft Raytracing Shadows are flickering
UE - Graphics Features - Ray Tracing - Feb 18, 2025[Image Removed][Link Removed] ...
t.MaxFPS 0 locks FPS to 120 instead of unlocking it in Viewport
Tools - Nov 7, 2017When unlocking FPS in Viewport it defaults to 120 instead of potential max FPS. If you do this during Launch the 't.MaxFPS 0' or 't.MaxFPS -1' commands unlock the FPS to the max the GPU allows in th ...
EnhancedInput Triggers can become stuck in an triggered state after pause when using Set Mode UI Only and CommonUI
UE - Gameplay - Input - Jan 10, 2024Actors attached to editor only actors have incorrect location in PIE
UE - World Creation - Worldbuilding Tools - World Partition - Jan 19, 2024Packaging failed with disabled plugin
UE - Foundation - Cpp Tools - Oct 9, 2018Disabling any plugin causes packaging failure. No repro in 4.19 Also occurring when Disabling all platforms except for windows and changing configuration from development to shipping. ...
PIE window does not match what was set in the New Viewport Resolution setting
Tools - Oct 24, 2019Setting the resolution of PIE to 4K Ultra HD results in the new PIE window going very far out of the bounds of 4K. If you are using two monitors the PIE window will bleed over a good bit into the ot ...
[CrashReport] UE4Editor_AssetRegistry!FPackageReader::operator<<() [packagereader.cpp:479]
UE - Foundation - Core - Aug 21, 2017This is a regular and longstanding crash that has occurred since at least the 4.14 release. The majority of the crashes occur on non-vanilla builds, although there have been a few vanilla crashes. ...
Interface function has the incorrect pin type if referencing self
UE - Gameplay - Blueprint - Sep 1, 2015Interface function has the incorrect pin type if referencing self User Description: I have an interface that requires an array of its own interfaces as output. I have that array of interface as a ...