I found the cause of the problem, this is the automation "Set the business process for the purchase of products per employee"
This automation automatically changes the price of the supplier from dollar units to hryvnia and writes it to the card, and this happens cyclically.
I am attaching a screenshot of the story:
https://prnt.sc/ucdegkCard screenshot, supplier:
https://prnt.sc/ucdey9I ask you to fix this bug in the system.