Unreal Engine Issues

Crash when resetting asset import data in static mesh editor

Crash launching UE4Editor.exe from cmd.exe with -dx12 argument

My Nvidia driver is our current approved driver: 378.49 ...

Crash after switching materials on a particle system mesh and saving the mesh

The repro steps are very similar to https://jira.ol.epicgames.net/browse/UE-34241 except that you have to save the static mesh before switching back to the particle editor. ...

drag the progress bar in level sequence would crash in debug editor

it seems in FSequencerTimeSliderController::ComputeFrameTimeFromMouse the CursorPos is -nan ...

Crash On Hot Reload with Custom World Settings and HISM Class

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: IsValid() [Link ...

Level Blueprint can be reparented to None, crashes Editor on Compile

This is a Regression. Tested in //UE5/Release-5.0 CL 20979098 - "None" is not an option for the parent class and the "Reset this Property" is not initially there. ...

Export Asset Task with Directory as Filename causes Editor Crash

Importing Camera FBX into a sequence can crash with a headless editor

In a headless editor instance we will not be able to send toasts to the user, and we should not notify slate. The Sequencer Tools function library calls MovieSceneToolHelpers::ImportFBXCameraToExist ...

Crash when re-importing alembic cache file several times

This didn't seem to have any relation to settings used within the importer, but just in case, I was using Static Mesh Import Type, Per Frame Sampling Type, Merge Meshes and Propagate Matrix Transfor ...

UE-47779 - Crash exiting packaged PlatformerGame while in the Main Menu

This was occurring when I quit via the Quit button in the Main Menu GUI. I also repro'd this using the "Quit" command in the console. I found this on Linux, but this was repro'd on Mac and Windows ...