Hi,
I see from your screenshots it is a non-stock kit item. So the costprice will come from sub items, which will be calculated when releasing the salesinvoice. Hence, normal behavior for the non-stock kit item on entry would be to show a costprice of 0, unless you enable the setting Kit cost based on components Sales order preferences. If you enable this you directly see the total cost of all components.
The reason why you see a costprice when entered in UI is probably because there has been a purchase or receipt transaction with this price earlier, can this be the case?
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