Launch on for Win64 produces fatal error

UE - Foundation - Core - May 18, 2015

Creating a C++ project and then attempting launch on for Windows 64 causes a fatal error crash in 4.8 preview 2 binary from launcher. Project recovers from fatal error and can then package and run . ...

Child Actor Component references are not sent to the Server through a Run on Server RPC

UE - Networking - Nov 9, 2015

Child Actor Component references are not sent to the Server through a Run on Server RPC. Test project attached. Reproduced in 4.9.2 binary and Main (CL# 2758903). ...

Array OnRep Notification Not Running on Server

UE - Networking - Nov 30, 2016

Array variables marked as RepNotify are not calling OnRep on the server when they are not directly set using a Set 'VariableName' node. Found in 4.14.0 CL# 3195953 Reproduced in 4.13.2 CL# 317229 ...

Combobox shows no text in android device using Mac.

UE - Platform - Mobile - May 19, 2017

This issue is reproduced in 4.16 preview 3 version and in Mac, deployed into android device. And not reproduced in windows pc. Not reproduced in 4.15.2 launcher version(regression) Not reproduced on ...

Typos in Math_Hall of ContentExamples

Docs - Samples - Sep 20, 2016

Need to update label from 0 to 1 on the left slider of display 1.6Need to update labels for small slider on display 1.10 to display 0, 1, 2 as those values can go up to 2Need to update 1.12 Example ti ...

Creating a Second Strategy Game Project with the Default Name Doesn't Update References in Code

Tools - Dec 1, 2015

Creating a second Strategy Game project, and leaving it as the default name (StrategyGame2) will prevent it from being compiled. The compile fails because the files are not properly renamed to match ...

Skeletal mesh bones cannot be selected in the viewport of the IK Retargeter

UE - Anim - Rigging - Retargeting - May 2, 2023

Skeletal mesh bones cannot be selected in the viewport of the IK Retargeter. They can still be selected via the bone name hierarchy. Reproduces in the following://UE5/Release-5.1 CL 2390901//UE5/Re ...

WorldCoordinate3Way produces Incorrect Axis Lerps

UE - Graphics Features - May 18, 2016

The Material Function WorldCoordinate3Way seems to incorrectly perform the Lerps from the axis contributions of the normals. An example is show here, with the left objects using the version that com ...

GPU-ARM Mali 400 series phones will render an Opaque Unlit Material as black

UE - Platform - Mobile - Feb 12, 2016

ARM Mali 400 Series GPUs are rendering Opaque Unlit Materials as Black instead of the designated color. This is a *regression* from 4.10.2.Devices where Issue OccursDevice NameBrandBug Description ...

Enabling Wireframe Mode along with HDR (EyeAdaptation) Visualization crashes the Editor

UE - Graphics Features - May 29, 2025

In the Viewport, enabling Wireframe Mode (ALT+2) along with HDR (EyeAdaptation) Visualization crashes the Editor. I've tested different versions and this issue is not present on 5.0, but it reproduc ...