Shader complexity mode reportedly broken on Vulkan

UE - Rendering - Architecture - RHI - Mar 23, 2021

Shader complexity reported (on AH) broken on Linux since 4.25. No local repro attempted. https://answers.unrealengine.com/questions/1019826/shader-complevity-view-mode-is-completely-broken-s.html ...

Crash when adding a Material Layer with a Static Component Mask Parameter node to a Material Instance

UE - Graphics Features - Apr 15, 2021

When adding a Material Layer, that has a Static Component Mask Parameter node in it, to a Material Instance, the editor will crash.   The ability to set Material Attribute layers in a Material Inst ...

Crash when removing mesh and undoing in Character Blueprint

UE - Framework - Blueprint Editor - Aug 9, 2023

When removing a mesh from a Character BP and undoing the engine will crash. This issue is occurring in //UE5/Release-5.3 @ CL 26560699 This issue is NOT occurring in //UE5/Release-5.2 @ CL 2600198 ...

Static Offset in IK Retargeter does not save position when restarting the editor

UE - ACT Character - Retargeting - Sep 19, 2023

When editing an IK retargeter, a static offset's value will get reverted to zero when UE is restarted. Tested in the following: //UE5-Release-5.3-CL-27405482 //UE5/Release-5.2-CL-26001984 ...

Xcode 8 Beta Toolchain Breaks InfiltratorDemo on AMD On 10.11.6

UE - Platform - Apple - Jul 27, 2016

InfiltratorDemo rendering is entirely broken on 10.11.6 using AMD GPUs when the shaders are compiled to byte code using the Xcode 8 Beta 2 toolchain. This does not appear to occur with the Xcode 7.3 ...

A Function input's type is set as Wildcard by default if a Macro with a Wildcard input is created before the Function

UE - Gameplay - Blueprint - Sep 11, 2015

A Function input's type is set as Wildcard by default if a Macro with a Wildcard input is created before the Function. Compiling will fail with an error. Reproduced in 4.8.3 binary, 4.9.0 binary, a ...

GameCenter does not login on Match3 startup on iOS

UE - Platform - Mobile - Aug 23, 2016

When launching on or opening a packaged UnrealMatch3 project GameCenter does not login for the paired account. This causes Leaderboards and Achievements to appear blank. Tested on iPhone6s_6240 OS: ...

Get Random Point In Radius does not return certain vectors

UE - AI - Mar 25, 2015

https://answers.unrealengine.com/questions/198619/get-random-point-in-radius-does-not-work-properly.html "Get Random Point In Radius" will leave one square sector empty. Seems like it creates patch ...

Low fps on Linux when tooltip window appears

UE - Platform - Linux - Jan 14, 2016

Hovering the mouse over an asset/menu option that produces a tooltip window, the fps will drop while the tooltip is visible. Reported using Mint Cinnamon 17.3 Internal machine uses Ubuntu 15.10 and ...

Log Spam Warnings when adding a font in the Font Editor

Tools - Jan 12, 2017

Adding Font to a Font asset spams the Output Log with warnings This is a Regression from 4.14.3 Warnings:LogStreaming:Warning: Failed to read file '' error. LogSlate:Warning: GetFontFace failed t ...