Hi Andrew, sure I’ve seen it, but I’m using 4.14.2 compiled from sources, for this reason when I launch the hotfix it says it cannot find an unreal installation. I discussed about this issues also here: Unreal Engine is exiting due to D3D device being lost (Error: 0x887A0006 - 'HUNG') - World Creation - Epic Developer Community Forums . Where Ed suggested a specific code patch (probably the one contained in the QFE?) but this I already have in my codebase, so it’s not solving the issue. in advance for anything you can do about this issue. Its a real pain! 