Factorio Forums

To reproduce: Build and open the gui of an assembler(1, 2 or 3), quick replace assembler to another level (3, 1, 2). gui will close but the event on_gui_closed will not be called. I have a mod https://mods.factorio.com/mod/Actual_Craft_Time that relies on this event. I expect either the gui to remain open or the event to be called. This also is true for stone and steel furnaces. As the event is not fired, a gui in my mod doesn't close and causes the game to crash when a new gui tries to be created as both will have the same name. I'll need to add a check if this is to be not fixed.

Thanks for the report however this is working correctly. It's even documented on the event: http://lua-api.factorio.com/latest/even ... gui_closed

Note: This is only called if the player explicitly closed the GUI.

This is a limitation of how the game works when it comes to GUIs. The same behavior happens if you kill or call destroy() on the open entity.

Very well, I'll make changes to my mod.