Cannot get input from input device without Controller already being created

Tools - May 1, 2015

Controller 2 is not getting routed to the scene viewport unless the viewport has been clicked. ...

AI in sublevel calling actors in persistent level crash editor when sublevel is not visible

UE - AI - Aug 11, 2016

If an AI is moving between points in the persistent level but is located within a sublevel and the sublevel is set to not visible, there is a chance that the editor will eventually crash. Setting Is ...

Blender exported assets flip material elements on import in 4.14 P1

UE - Editor - Content Pipeline - Import and Export - Nov 7, 2016

In 4.14 Preview 1, assets imported from Blender 2.77a flip material elements, causing materials to appear incorrectly once placed in level. Regression (yes) issue (does not) occur in 4.13.2 ...

Locked actors still moveable in VR Editor

UE - Editor - Workflow Systems - Jan 22, 2018

Actors that are locked in the regular editor are able to be moved in VR Editor. Reproduced in 4.17.2 CL 3658906, 4.18.2 CL 3794801, and 4.19.0 P1 CL 3837072 ...

The layer option for grid panels do not appear to be having an effect on draw order

UE - Editor - UI Systems - Feb 1, 2016

It appears that users are unable to order widgets within a grid panel so as to set what widget that would like to be in the front. The layer option in the details panel says that it affects draw ord ...

Nodes impacted by code changes do not generate warnings after HotReload

UE - Gameplay - Blueprint - Oct 20, 2016

I noticed this while executing https://jira.it.epicgames.net/browse/UEQATC-1441. At step 10, there should be warnings on the nodes that were updated by the HotReload. This is a regression from 4.13 ...

[CrashReport] Fatal error: Cast of nullptr to Actor failed - UE4Editor_CoreUObject!CastLogError()

Tools - Jul 19, 2017

This is a common crash affecting users in 4.16, and has been occurring since at least 4.14. It has affected more than 400 unique users, unfortunately they have provided little information. User Des ...

Crash on Level Reload in Standalone when Set Sound Mix Class Override is called

UE - Audio - Aug 29, 2018

When the Set Sound Mix Override is called, reloading the level causes a crash when played in Standalone. Tested in 4.19.2 (CL - 4033788), 4.20.2 (CL - 4302132), 4.21 (CL - 4324949) ...

Shadows flicker when using spotlight

UE - Graphics Features - Jun 5, 2019

The shadows on a spotlight flicker whenever the camera is moved.  Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22.2 (CL - 6547378), 4.23 (CL - 6845209) ...

Editor crash when ticking then unticking "Toggle Visualization" in a Google Resonance Spatialization Settings window

UE - Audio - Oct 23, 2020

This is a user reported crash, I was able to re-create in 4.25.4. I'm also assuming this happens in 4.26, however there is a current blocker that stops me from opening this project in 4.26. Linked ...