When we do Report As Finished, the physical cost is updated on the batch but when we Reset the production order, the cost is not reversed. The consumption is also reversed but the cost is not updated on such items. Due to this, the cost is shown as Nil on these positive entries. Whenever such material is used again, zero cost is flown to the subsequent transactions leading to wrong costing of products. This problem is also happening when we create negative picking slip manually. Hence, cost should be updated on the item for such reversed transactions.