Copy, Paste and Hover a Material Layer Blend Node causes Crash

Tools - Jun 25, 2015

In the Material Editor, if all Live Previews are turned off, copying and pasting a Material Layer Blend Node will crash when the tool tip is being processed. Also Reproduced in Main Promotable-CL-2 ...

Opening a widget blueprint on Linux causes editor to crash

UE - Platform - Linux - Aug 25, 2016

The editor crashes when attempting to open a widget blueprint. ...

Non-terminating while loop when creating a new BP Actor and quickly switching between components.

UE - Gameplay - Blueprint Editor - May 14, 2024

It is possible for the while loop in UnrealEditor-SubobjectDataInterface.dll!USubobjectDataSubsystem::GetActorRootHandle(const FSubobjectDataHandle & StartingHandle) Line 815  to not terminate when ...

UE4Editor does not start when there are no audio devices available

UE - Platform - Linux - Sep 26, 2018

UE4Editor does not open when there are no audio input or output devices available. The editor hangs at 83% after it initializes the AudioMixer. This issue looks like it was caused by CL 4396954. Et ...

Linux crash when Exporting content

Tools - Jun 2, 2016

When the ExportAll window is opened, changing the file type filter and attempting to edit the chosen file field causes the editor to crash. ...

Editor Crashes When Attempting to Open Material Function

UE - Rendering Architecture - Materials - Jun 2, 2017

The editor is crashing when trying to open a material function that the user provided. User Quote: One of my material functions crashes the engine when I open the editor for it. It works fine, I ...

Editor crash on loading a project after enabling the Tango plugin on Linux

UE - Platform - Linux - Aug 22, 2017

Enabling the Tango plugin on Linux causes the editor to crash on restart. Regression: No - Tango plugin not available in 4.16.3 (CL 3561208) ...

Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open

UE - Niagara - Mar 7, 2019

Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open Discovered when verifying [Link Removed] (also similar to [Link Remo ...

Packaging with plugins GearVR and GoogleVR together cause build failed with multiple definitions of GetHMD()

UE - Platform - XR - Sep 7, 2016

Packaging with plugins GearVR and GoogleVR together cause build failed with multiple definitions of GetHMD(). Log attached for build error and error portion plugged into the callstack box. ...

Editor crashes on compile with no warning when trying to access information from a "Slot as Canvas Slot" node on tick that has not been set yet by begin play

UE - Editor - UI Systems - Jul 1, 2015

If a user creates a widget variable that is set on begin play and then tries to get information from that widget via the "Slot as Canvas Slot" node on tick the editor will crash. This appears to hap ...