CrowdManager never calls StartUsingCustomLink() on Agents when Custom NavLinks are Placed in the Level and Traversed

UE - AI - Mar 20, 2017

StartUsingCustomLink() never gets called in the CrowdManager when an AI with a UCrowdFollowingComponent begins to traverse a NavLinkProxy that has been placed in the world. The link UserID always r ...

Launching a specific UDN Project with Vulkan Support enabled crashes launching on Quest

UE - Platform - XR - Jul 30, 2020

When attempting to run the attached Project submitted from UDN, it will crash on launch. If Vulkan support is disabled, the Project will run as expected on Quest. This issue DOES NOT appear to repro ...

Trigger Volume bounds do not appear for custom Trigger Volume class until editor is restarted

UE - Gameplay - Nov 28, 2016

After creating a class based on Trigger Volume, adding an instance of the custom class to the viewport does not show the green bounds of the volume until after the editor is closed and restarted. T ...

meshes from 3ds Max which have custom pivots do not reappear in the level after undoing a delete action

UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 29, 2018

There is an issue occurring where meshes from 3ds Max which have custom pivots from a datasmith import do not reappear in the level after deleting them and then undoing the delete action. The mesh d ...

If a hot reload is performed after adding a custom UserDefinedEnum class to the project, the Editor will crash.

UE - Foundation - Core - Nov 17, 2015

Performing a hot reload in the Editor after adding a custom UserDefinedEnum C++ class to a project results in a crash. A normal compile in Visual Studio will complete successfully. ...

Packaging fails during compilation when nativizing a blueprint using ForEach and ByteTo with a custom enum type

UE - Gameplay - Blueprint - Jul 13, 2018

When using Blueprint Nativization, the compilation will fail during packaging when using a ForEach loop or ToByte conversion with a custom enum in a TMap. Regression?: No This occurs in 4.18 ...

Asset manager duplicates asset types on project reopen after custom element is made

Tools - Oct 24, 2017

There is an issue where, in the Asset manager duplicates asset types on project reopen after custom elements are made for the "Primary Asset Types to Scan" array. THis issue does not appear to be a ...

Using a custom #define as the condition for a UFUNCTION's declaration will cause the function to not show in blueprints

Using a custom #define as the coniditon for an #if / #endif that encapsulates a UFUNCTION that is marked as BlueprintCallable will prevent it from being visible in blueprints despite the #if resolvi ...

Editor can crash while performing a Hot Reload after a custom UClass class is added to the project

UE - Foundation - Cpp Tools - Hot Reload - Mar 14, 2019

Performing a Hot Reload after creating a custom UClass class can result in a crash. This was reported on Linux, but reproduced on Windows. Additional testing will be done on Linux to confirm the is ...

A packaged game that contains a plugin with a custom struct and function using that struct will crash on launch.

UE - Foundation - Cpp Tools - Plugin System - Sep 9, 2015

If a project is packaged with a plugin that contains a custom struct and a function that takes that struct as a parameter, the game will crash when the executable is run. [Link Removed] ...