As you may have seen elsewhere I successfully managed to cook my custom GWR locomotive on 18th January including a simple scenario and the pak file works fine in the game. Shortly after the Editor was updated on Epic Games website and since then I can no longer cook and pack improvements to the locomotive. I have uninstalled/ reinstalled the Editor several times. I clear all cooked files, staging info, and mods from the Editor , set up a new MOD and then cook and pack using Mod Manager. Everything appears OK but in staging folder the pak. file is approx 50Kb. Using the "recook " bat file changes the pak. file to approx 250Kb. If the larger file is loaded into the game it appears OK and the scenario is available to play, but the scenario fails after 2mins 55sec every time. All cooked scenarios do the same including "Off the Rails" scenarios made in the game. This happens in both TSW6 and TSW5 Pak files cooked before the update continue to work correctly in game. I have tried various changes to the content but the result is always the same. Is the editor broken since the last update ? Is anyone else having problems ?