Crash when Matinee with 2 Event Tracks stopped from one of the Event Tracks

Tools - Mar 16, 2015

When stopping a Matinee from an Event Track via the level blueprint, if you have 2 Event Tracks the editor will crash. Also Reproduced in Main Promotable-CL-2479729 ...

Editor crash when shader debugging enabled including r.shaders.optimize=0

UE - Rendering Architecture - Shaders - Jun 23, 2024

The editor crashes when activating cvar options for shader compilation and debugging. ...

Loading Duplicated Level via Python API Crashes Editor

UE - Editor - Workflow Systems - Feb 16, 2023

When called from Python, in 5.1 the load level invocation results in a kernel panic style crash of the editor, with a message about the map leaking memory and not being able to be garbage collected ...

Unable to create installed build with iOS support from PC

UE - Foundation - Core - May 3, 2017

Attempting to build a local binary engine from a source engine will fail when iOS support is enabled in the setup process. Command line argument (ran from Engine/Build/BatchFiles folder location): ...

Linux: Assertion at splash screen when trying to open UE4Editor

UE - Platform - Linux - Mar 21, 2017

I ran into this while looking to verify [Link Removed] at CL 3355923. I logged the issue I was verifying the fix for last night and have not updated anything locally, so the "OpenGL 4.3 not supporte ...

New VR-Basic level triggers Metal validation layer assertion

UE - Platform - Apple - Mar 16, 2020

This was discovered externally and reported on UDN here: https://udn.unrealengine.com/questions/563268/mac-editor-crash-when-disable-ambient-occlusion.html ...

Importing a New Substance Preset will crash the engine

UE - Foundation - Core - May 13, 2015

With the Substance plugin installed and when you try to import new preset data into the Substance Graph Instance, the engine will crash ...

Crash when launching Google VR project

UE - Platform - XR - Dec 12, 2016

Attempting to launch a packaged Google VR game on android causes the game to crash. This has occurred on two other devices. This occurs in Main as well as Dev-VR. ...

Walking into some destructibles crashes the editor

UE - Simulation - Physics - Destruction - Aug 20, 2015

Submitted by a licensee on UDN. I verified it and have attached the test level that he provided. In the test map. some boxes fall and break. Walking straight into the boxes causes the editor to cra ...

Opening Persona causes editor to crash on Linux

UE - Platform - Linux - Nov 17, 2016

Attempting to open a skeletal mesh or animation in Persona causes the editor to crash. Regression: Yes Working: 4.13.2 - CL 3172292 Broken: 4.14.0 - CL 3195953 ...