Issues with orders, plugin forgets to convert currency of order

Hi!

We have an issue that happened 2 times in 1 year. We have about 1000 orders, and 2 orders didnt converted the correct currency.

For example, for a product that is 1420 EUROS, the order is in the backend 1420 LEI.

The client said that he saw the product at the correct price, which is 7065 LEI.

But he received the Invoice for 1420 LEI.

Any idea what is wrong?

I didnt found any errors in logs.

So it happened 2 times till now, for 1000 orders, over 1 year.