Edit: got a similar error when playing the tight spot compaign. Pressed on start button, than on the minus button to lower game speed:Unknown key:"Error while running the on_init: D:/Factorio/temp/currently-playing/control.lua:139: attempt to call global 'init_story' (a nil value)"
Edit2: On loading tightspot LV2Error while running the event handler: D:/Factorio/temp/currently-playing/tightspot.lua:239: attempt to call global 'tightspopt_update_speed_label' (a nil value)
D:/Factorio/temp/currently-playing/control.lua:63: attempt to index global 'tightspot' (a nil value)