Paid Amount in Sales Invoice Keeps Changing Value with POS / Loyalty Point(s)

Hello everyone, hope you’re having a great day. We’re having an issue in our system that we think it might be an actual bug.
The scenario goes as follows: we create a POS sales invoice from POS page and we add loyalty points to be redeemed. When we submit, the ‘Paid Amount’ field in the Sales Invoice page keeps having different values. It can have the total of the order one time and after refreshing or reloading, it can have the total value of the order minus the loyalty amount. We haven’t figured out a way to resolve this. Please advise.
Note: the correct total amount of the order minus the loyalty amount is visible in the Sales Invoice Payment child table.

Thank you in advance.