Sorry, if you are not using IC, then you must be using a 'User specified' costing method - there is not other choice. The Most Recent Cost of the item will default when you add a new detail to an order.

If the MRC of an item was 2.18, this would be used as a default cost for your order. The scenario we need to determine is what function or process wrote 2.18 to the most recent cost field, if you were hoping it should be zero. OE would not do this.