Can not empty conveyors

While testing the update, I noticed one serious error. It is absolutely impossible to assign manual cleaning of the conveyor belt to duplicates. The game does not allocate any area for devastation, despite the fact that the menu has a corresponding item. At the same time, the emptying of gas and liquid pipes works normally. I found the same error in the main version of the game. After a few tests, I realized that it's not about priorities or skills, since in the colony I have both a conveyor belt Mechanic and a Cleaner with the skill of emptying.