A posting in dollars is created from the order, although it should not be

We have several groups of buyers. One of them is wholesale customers. They have a separate price in the product card. Price in UAH (always was in UAH). At a certain stage, a Sale is created from the wholesale client's order (prices there in UAH), but for some reason it is created in dollars, although this should not be. I thought that something might be wrong in the automation - I deleted the Sale and did it again when the order was already at the final stages, but for some reason it is still created in dollars. Why this happens I can not understand. Please help me to deal with this problem.