Change of rotation axis when switching solver

UE - Simulation - Physics - Apr 17, 2025

This alteration was introduced in the 'Found CL' field - and is likely an unintentional side effect of adding SIMD to the solver. There is a repro project attached, open up 'TestMap' and run to see ...

When exporting a level sequence (with its associated level) to USD, the asset paths for the reference are different from 5.5 and older

UE - Editor - Content Pipeline - USD - Jul 21, 2025

In 5.6, a referenced asset path looks something like         prepend references = @../../../../../Data/USD/Exports/FN-Main/ExportFolder/Assets/Sphere.usda@ instead of         prepend references = ...

Xcode 26/16.4 Metal Toolchain generates metallib's that are not compatible with iOS 16

UE - Platform - Apple - Sep 23, 2025

Below is the error output from FirstPerson template as a C++ project: {+}../../../FirstPerson58CPP/Content/firstperson58cpp_sf_metal_es3_1_ios-metal_es3_1_ios.0.metallib, 5881486 bytes!2025-09-23 1 ...

Textures/Materials morphed when BSP is scaled

UE - LD & Modeling - Modeling Tools - BSP - Mar 17, 2015

When you place a texture onto a BSP and resize the BSP, the material/texture is skewed to the size of the BSP rather than staying at the scale it originally was. Work Around: You can resolve this b ...

Editor crashes upon PIE unless tick is disconnected and reconnected

UE - Gameplay - Blueprint - May 14, 2015

Project crashes if user presses compile or PIE unless they first disconnect and reconnect event tick within blueprint component BP_BuildStage. Frequency: 4/4 CrashReporter: [Link Removed] ...

Static + Dynamic CSM shadowing causes shadow acne for skeletal meshes on iOS

UE - Platform - Mobile - Jun 7, 2016

User reports Static + Dynamic CSM seems to cause horrible shadow acne on skeletal meshes. Believed to be the iOS depth bias issue. ...

Material stats incorrectly flag 17/16 samplers even if GL4 allows 32

UE - Rendering Architecture - RHI - Jul 15, 2015

From AnswerHub: Utilising 128 textures in a material does not work in Linux, its still limited to 16 (actual 12) on OpenGL platforms, I looked at the commit that implemented it and I don't see anyth ...

Unable to import editor preference settings

Tools - Nov 18, 2014

QA Regression? Yes: Working:2356762 Broken:2362994 The import button for most of the general editor settings is grayed out. User is unable to import previous appearance settings. Update 06-28-2 ...

Typing "Custom" in Blueprint Search Menu No Longer Brings Up Add Custom Event by Default

UE - Gameplay - Blueprint - Sep 2, 2016

When typing the word "Custom" into a blueprint search field, Add Custom Event is no longer the first node that appears. This is inconsistent with behavior in previous versions, as typing in "custom ...