When i try to upgrade the underground belts to fast underground belts the game crashes and a notice pops up saying "Error while running event upgrade-planner::on_player_selected_area (ID 49)
Given object is not lua entity.
stack traceback:
upgrade-planner/control.lua:708: in function 'player_upgrade'
upgrade-planner/control.lua:714: in function 'player_upgrade'
upgrade-planner/control.lua:692: in function 'on_selected_area'
upgrade-planner/control.lua:662: in function <upgrade-planner/control.lua:661>"
Game version: 0.15.9
Mod version: 1.2.18
