Particle Cutout Crashes On Mobile Devices That Don't Support Hardware Instancing (Mali-400 GPU)

Particle cutout seems to crash on lower end mobile devices. We believe this is because there is an issue in the particle's SubUV feature. This happens only on devices that don't support hardware ins ...

Trying to set a variable in one element of an array of custom UObjects will set that variable for all elements in the array.

UE - Gameplay - Blueprint - Dec 29, 2014

If an array of custom UObjects is added to a class, changing the value of a UPROPERTY variable in one element of the array sets the same value in all elements of the array. ...

Trying to create a custom code class derived from ArrowComponent will result in the build failing in Visual Studio.

UE - Foundation - Core - Feb 11, 2015

Deriving a custom code class from UArrowComponent results in several link errors (LNK2001 and LNK2019) in Visual Studio when trying to build the project. ...

Missing reset to default buttons/arrows on "Object Responses" section of component collision profile response details customization

Tools - Jul 22, 2020

The "Reset to default" button/arrow is missing from the channels listed in the "Object Responses" section of the Collision Preset details customization. ...

Struct that is referencing a Custom bp Class will reset to default values on editor restart

UE - Gameplay - Blueprint - Sep 16, 2015

Struct that is referencing a Custom bp Class will reset to default values on editor restart User Description: Making a array of object types in a struct. the goal is to have a struct containing wa ...

Moving a custom cusor (widget blueprint) to another folder after it has been set as the Default mouse can cause a crash

UE - Editor - UI Systems - Mar 2, 2015

Moving a custom cursor after it has been set as the default cursor will break the path being used and if the user tries to reset the path but selecting the widget again the editor will crash without ...

Materials with a custom node with a Struct that has a function fails to compile for GLSL (Android) and uses a default material

UE - Graphics Features - Apr 29, 2019

A user has reported that Materials that contain a custom HLSL node that has a Struct with a function declared inside of it results in the material failing to compile for GLSL, causing the Material t ...

Using Execute Console Command in a custom Game Instance causes Standalone Game to crash

UE - Gameplay - Blueprint - Jan 15, 2015

Using Execute Console Command in a custom Game Instance causes Standalone Game to crash. Also occurs in 4.6.1: CL-2386410 and 4.7 Preview: CL-2403078 Crash Report: [Link Removed] Call Stack:UE4Ed ...

Blueprint compile error can occur when trying to override a BlueprintImplementableEvent that takes a custom enum as a parameter

UE - Gameplay - Blueprint - Mar 1, 2017

When a BlueprintImplementableEvent that takes a custom enum as a parameter is overridden in a Blueprint, it will throw a compile error. The compile error states that the event cannot be overridden b ...

Entering 'Games App Id' for Google Play Services without configuring apk packaging first crashes the editor

UE - Platform - Mobile - Jun 12, 2015

User reported that he was experiencing a crash when attempting to put in Games App ID in Android section of project settings. Note that this occurs only if the Configure Now button in the APKPackagi ...