Enabling World Composition Skips Intro Movies

Tools - Jun 24, 2016

Startup movies are skipped when World Composition is enabled. Even with the 'Wait for Movies to Complete' option enabled, the startup movie plays for a very short time, and then the level is loaded ...

Compiling specific blueprints in user projects cause editor to freeze and become unresponsive

UE - Gameplay - Blueprint - Apr 28, 2016

Several users have reported that their projects cannot compile specific blueprints. In one a character blueprint and another a controller. In both instances, the editor becomes completely unresponsi ...

Static Mesh Editor: Give options for drawing complex/simple collision

UE - Simulation - Physics - Mar 13, 2017

The collision mesh and the display mesh are often similar enough to be difficult to differentiate, and there is currently no way to view the collision wireframe without the display wireframe as well ...

Landscape Grass Output Instances begin to float when using the Retopologize Tool

UE - LD & Modeling - Terrain - Landscape - Mar 14, 2017

When using the Retopolgize tool on a landscape that is utilizing the Landscape Grass Tool, any pre-existing grass types will begin to float and transform their locations. The only way myself and th ...

When launching from Mac to iOS, the process does not end normally, so the second and subsequent application launches from the iOS device are not performed properly

UE - Platform - Mobile - Apr 16, 2019

If you deploy the app to the iOS device using the Mac editor's Launch button or Project Launcher, the second and subsequent launches will fail. The following message is output when startup fails. T ...

Visual Studio is required to create a new Blueprint script component

Tools - May 26, 2015

If a user does not have visual studio installed, they are not able to create new Blueprint script components and are given the error message "No compiler was found. In order to use C++ code, you mus ...

Linux editor windows are completely black

UE - Platform - Mobile - Apr 10, 2017

All of the editor windows are completely black on the Linux machine with the exception of the splash screen. This occurs for the Unreal Project Browser, toast windows and game windows. The functio ...

Crash when reimporting staticmesh fail

UE - Editor - Content Pipeline - Import and Export - Feb 12, 2020

When a re import fail, we currently delete the package which in a reimport case produce a crash later. If a reimport fail we should abort and make sure the asset is not touch and exactly like it wa ...

Different CRC32 Results for Repeated Hashing of UStaticMesh

UE - Foundation - Jul 15, 2024

1. Download the Licensee repro, compile, and open:https://udn.unrealengine.com/s/contentdocument/069QP00000CdN7WYAV 2. Press the first hatched button on the top bar, next to the Platforms dropdown. ...

AssetRegistry: In a packaged game ScanPathsSynchronous with bForceRescan=true will permanently forget about assets inside IOStore containers

UE - Foundation - Data Pipeline - May 7, 2025

This came up from several discussions on UDN and internal discussion. The root cause is that the AssetRegistry currently cannot discover packages inside IOStore containers, it relies on the seriali ...