BAG when using a variable when creating an account

Good day! Until recently, it worked correctly, but now, without any changes, an error appeared - the invoice indicates an incorrect price per product unit, because the process is recalculated depending on the quantity, so the discount is UAH 2 for the 3rd position. UAH 105 in the account, and UAH 103 in the transaction. Example of a deal - https://invafishki.1b.app/303527/ At the same time, it works correctly in the issuing department. The amount of the order is also correct, but the price for the position is incorrect. Tested on another box, everything is ok there, which confirms the suspicion - https://www.youtube.com/watch?v=YNYDfhpmz5Q Please help in finding the problem. thank you