Assert When Saving Over Existing Level With Built Lighting

Tools - Apr 17, 2017

While saving over an existing map the engine will crash if both maps have baked lighting. ...

Importing Mesh with "Import Animations" enabled crashes editor.

OLD - Anim - Nov 13, 2015

After importing a mesh with "Import Animations" enabled the editor crash's. Importing only the mesh does not crash the engine. Importing animation separately and assigning to Skeletal mesh on import ...

[CrashReport] UE4Editor_UMG!CastChecked<UUserWidget,UObject>

UE - Anim - Sequencer - Aug 14, 2017

This is an early trending crash in the 4.17 release. This may be a regression as there is no initial evidence of this callstack occurring in 4.16. User DescriptionsJust compiled my widget Source C ...

Lightmass crash after finished building and hitting save

UE - Foundation - Core - Mar 19, 2015

User is reporting that the editor will crash after lightmass has finished building and they click to save the project. ...

Crash when Building Lighting on Macs with Lighting Scenarios

UE - Platform - Apple - Oct 27, 2016

A crash occurs when you building lighting with a project using Lighting Scenarios on a Mac. I attempted to reproduce the issue using a new blank project, but was unable to get the crash to occur. T ...

Crash trying to import facial animations

OLD - Anim - Jan 20, 2017

Crash occurs when attempting import Facial Animations in the Facial Animation Import Tool. ...

MetalRHI Asserts When Using "Profile GPU" With RHI-Thread/Parallel-Execution

UE - Graphics Features - Sep 14, 2016

When the RHI thread is enabled (with or without parallel-execution) for Metal it isn't currently possible to run "profilegpu" because the GPU timestamp emulation code isn't multi-thread safe and pro ...

Editor crashes when using Save As

UE - Graphics Features - Sep 19, 2016

Editor crashes when using Save As Regression: Yes Broken: 3126145 (Dev-Core integration) Worked: 3126027 ...

Mac ShooterGame crashes when loading into the match with Pak files

UE - Platform - Apple - Feb 15, 2017

ShooterGame crashes when loading into the match on Mac when that ShooterGame was packaged with Pak files. The ShooterGame project was created using the Unreal Engine Launcher I do not see this is ...