Unreal Engine Issues

Crash Clicking on Enum in BT Decorators After the Enum Has Been Altered

Clicking on a Behavior Tree decorator that references an Enum blackboard key will crash the editor if that Enum has been altered in the method described in the repro steps. If you set decorators to ...

~FStaticMesh() can crash with race condition

UDN user reported frequent crashes in FStaticMesh::~FStaticMesh() on DrawListLinks[i]->Remove(false); Crash went away after adding critical sections to FStaticMesh::LinkDrawList(), FStaticMesh::Unl ...

App on Gear VR crashes when trying to join a listen server as a client

If the user tries to join a listen server with an app that is running on the Gear VR the App will stop working. ...

Projects crash when launching onto Firefox 64-bit

QAGame crashes when it launched onto Firefox. The following exception occurs with the error message:*Expression (0) failed in D:\UE4_Dev-Rendering\Engine\Source\Runtime\Core\Private\Async\TaskGraph ...

[CrashReport] Assertion failed on Linux: SharedContext.hGLContext in OpenGLLinux.cpp

This is a top community crash occurring on Linux. The two linked CrashGroups have nearly identical callstacks. A log file is attached. Additional information is currently unavailable. Callstack f ...

ShooterGame: Unable to Find Hosted Match over Wi-Fi on Android

Android devices cannot find a hosted match over Wi-Fi (IPv4) from another Android device despite being connected to the same Wi-Fi network with matching subnets. The host prints the following messa ...

GAS: Async loaded GameplayCueNotify can execute cue events out of order

Licensee reported problem via UDN. Context GameplayCues ('cue') are events that can be fired by game code, that are identified via a GameplayTag. Cues can be instantaneous or can be a state on any ...

AdditionalPluginDirectories/RemappedPlugins doesn't work for packaged/zenstore build when plugin directory is relative and outside of project directory

Originated from UDN post:https://udn.unrealengine.com/s/question/0D5QP000007QWuz0AG/additionalplugindirectories-outside-of-project-visual-studio-and-zenstore QUOTE: TLDR: Use of 'escape' paths in U ...

Sqlite plugin crash on iOS

Package Failed with VS2019

Error Log: UATHelper: Packaging (Windows (64-bit)): CSC : warning CS1685: The predefined type 'System.Runtime.CompilerServices.ExtensionAttribute' is defined in multiple assemblies in the global al ...