Unreal Engine Issues
Unreal Engine Issues
When IOStore is enabled, -createchunkinstall separates out chunk-non-0 pak files but not utoc/ucas files
UE - Core - Data Pipeline - Cooker - Dec 12, 2022The -createchunkinstall option is used to separate out chunk>0 CDN/patch data from the main packaged app, but when using it with the IOStore enabled, only the pak files are separated out but not the ...
Child actor primitive root component failing to decrement attachment counter to 0 before UPrimitiveComponent::FinishDestroy
UE - Framework - Components - Aug 8, 2024Dragging a BP actor containing a child actor component of an actor class with a static mesh as its root component into the scene viewport will cause artifacts and hit SceneData.AttachmentCounter.Get ...
With Accurate Velocities from Vertex Deformation and Instanced Stereo enabled anti-aliasing does not affect the right eye
UE - Platform - XR - Jul 8, 2016KevinR: Make sure you are using Temporal AA (TXAA), and I was using SteamVR/Vive With Accurate Velocities from Vertex Deformation and Instanced Stereo enabled anti-aliasing does not affect the righ ...
"Distance Field Resolution Scale" in Build Settings is set to 0 by importing assets via "Import into a level"
UE - Editor - Content Pipeline - Import and Export - Mar 18, 2022"Distance Field Resolution Scale" in Build Settings is set to 0 by importing assets via "Import into a level". That causes not to genarate any distance field meshes of all assets imported via "Imp ...
SetControlRotation does not affect VR
UE - Platform - XR - Oct 1, 2015Using a Set Control Rotation node does not change the camera rotation when in VR mode. ...
InstancedFoliageActor experiences issues with floating point precision when far away from World Origin and is not affected by Origin Rebasing
UE - World Creation - Worldbuilding Tools - World Composition - Jul 17, 2020Foliage generated by Landscape Grass Type do not encounter this issue. Only hand painted foliage with foliage tool is not affected by rebased origin. Foliage vibrates when it is located in long dist ...
Crash when using Share Material Shader Code and Native Metal Libs with r.Shaders.Optimize=0
UE - Rendering - Architecture - RHI - Mar 17, 2020Using r.Shaders.Optimize=0 with native metal libs results in a crash of the packaged build at runtime. Workarounds is to either not use native metal libs for text shaders or in MetalShaders.cpp co ...
Outliner eye toggle fails to hide static meshes when Affect Indirect Lighting While Hidden is enabled
UE - Rendering - Architecture - Nov 5, 2025When a static mesh has the property Affect Indirect Lighting While Hidden enabled, toggling its visibility via the Outliner eye icon does not hide the mesh in the editor viewport. The actor remains ...
iOS apps crash on devices with iOS version 11.2.2 when Metal 2.0 is enabled
UE - Platform - Mobile - Jan 22, 2018Launching an iOS App that is set to Metal 2.0 on a device with iOS version 11.2.2 causes the app to crash and return to the home screen. This was tested on an iPad Pro as I do not have access to any ...
[CrashReport] Mac/Metal crash due to enabling Metal 2.0 on 10.12.6
UE - Graphics Features - Oct 26, 2017This is an early trending Mac/Metal crash coming out of 4.18. Mark.S: _Revised Statement: Users are trying to enable Metal 2.0 on 10.12.6. The iOS settings panel lets me show warnings about this st ...