Crash when cooking/packaging a level


Please see attached ‘log’ file, I am getting a crash when cooking a level.

[2017.03.16-20.19.24:555][389]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.16-20.19.24:039][ 0]LogSavePackage:Display: Finished SavePackage F:/ClutchPlay/swcedemo/dev/UE4/PetDroid/Content/Assets/Blueprints/BP_HoloLaser.uasset
[2017.03.16-20.19.25:389][476]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.16-20.19.24:155][ 0]LogCook:Display: Cooking /Game/Levels/PetShop_Proto → F:/ClutchPlay/swcedemo/dev/UE4/PetDroid/Content/Levels/PetShop_Proto.umap
[2017.03.16-20.19.25:390][476]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.16-20.19.25:381][ 0]LogWindows:Error: begin: stack for UAT
[2017.03.16-20.19.25:390][476]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.16-20.19.25:381][ 0]LogWindows:Error: === Critical error: ===
[2017.03.16-20.19.25:390][476]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.16-20.19.25:382][ 0]LogWindows:Error:
[2017.03.16-20.19.25:390][476]UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.16-20.19.25:382][ 0]LogWindows:Error: Assertion failed: Instance [File:D:\Build++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\Engine\Private\UserInterface\EngineFontServices.cpp] [Line: 49]


130377-petdroid.log (895 KB)


  • Have you tried deleting your Intermediate and Saved folder from the project?
  • Are you working in a source or binary version of the engine?
  • Are you using all blueprints, all code or a mixture of both?
  • Can you replicate this in a new project?

Looking forward to hearing back from you, thanks!

Hey Simon.Golding3,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!