Unreal Engine Issues

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

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

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

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

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

Editor crash when compiling a blueprint containing `SetAvoidanceEnabled` call in construction script.

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

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

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 ...

Application fails on HTML5

User is unable to launch his project onto HTML5 without any errors. The game doesn't work as an application, merely a background image. Works perfectly on Windows. ...

First Person Game Mode isn't set correctly for new default levels

When creating a new default level in the first person template, the default game mode is set to 'pawn' rather than 'first person character'. ...

Crash when using Crtl+Z after wrapping and selecting padding field

Editor crashes when clicking in to a padding field after wrapping a widget and then trying to undo the change. ...