Screen space reflections are flickering when using no Anti Aliasing

UE - Graphics Features - May 20, 2020

This is a regression from 4.24.3 (CL-11590370). SSR begins to flickers when AA is disabled when moving around the scene. This was reported and tested in 4.25 (CL-13144385) and reproduced in Main 4. ...

Crash when removing mesh and undoing in Character Blueprint

UE - Gameplay - 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 - CAPT - 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 ...

Crash upon diffing Blueprint that was reparented when its previous parent has already been deleted

UE - Gameplay - Blueprint Editor - Sep 20, 2017

When attempting to diff a Blueprint that has been reparented when the previous parent no longer exists in the editor, a crash occurs. The crash is due to the editor attempting to reference the delet ...

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: ...

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 ...

Crash in anim blueprint when dragging animation asset over commented space in graph

OLD - Anim - Feb 13, 2017

REGRESSION: Yes, does not occur in 4.14.3 Crash occurs when the user drags an animation asset into a commented area in the Anim Graph. This crash doesn't occur if the user right-clicks inside a co ...