The game boots Forge players to the main menu due to inactivity when going idle. When life calls, people can lose lots of Forge progress and cause tons of butthurt among forgers.
Here’s a possible solution: The game should automatically auto-save the map as a separate file upon being booting due to inactivity. Another solution is just letting us continue forging offline or just disabling the idle-booting in Forge all together.
You might as well catalog this issue, because you will hear about this again by many forgers in the future.