[2026.08.16-13.26.30:540][936]Error: Critical error while executing Main/data/actions.lua:530: attempt to compare number with nil
[2026.08.16-13.26.30:540][936]Error: stack traceback:
[2026.08.16-13.26.30:541][936]Error: Main/data/actions.lua:530: in upvalue 'fill_upgrade_inventory'
[2026.08.16-13.26.30:541][936]Error: Main/data/actions.lua:613: in local 'DoPlaceConstruction'
[2026.08.16-13.26.30:541][936]Error: Main/data/actions.lua:669: in function <Main/data/actions.lua:554>
[2026.08.16-13.26.30:541][936]Error: Unexpected error in simulation code can result in an unrecoverable state.
