Hi, I got this error, the game asked me to tell the developer))
I checked it several times, it happened when I was installing "Basic Oil Refining" on the demo stand in architecture 1, which was inside architecture 2

"Мод Factorissimo2-Space-Age-Port (3.0.0) вызвал неустранимую ошибку.
Пожалуйста, сообщите об этой ошибке автору мода.

Error while running event Factorissimo2-Space-Age-Port::on_tick (ID 0)
Factorissimo2-Space-Age-Port/control.lua:348: attempt to concatenate field '?' (a nil value)
stack traceback:
Factorissimo2-Space-Age-Port/control.lua:348: in function 'draw_overlay_sprite'
Factorissimo2-Space-Age-Port/control.lua:444: in function 'update_overlay'
Factorissimo2-Space-Age-Port/control.lua:1146: in function 'leave_factory'
Factorissimo2-Space-Age-Port/control.lua:1179: in function 'teleport_players'
Factorissimo2-Space-Age-Port/control.lua:1262: in function <Factorissimo2-Space-Age-Port/control.lua:1232>"