Payments and invoices recorded strangely

I just noticed that in my Banking Register there are a number of things recorded quite differentlt than previously.

Payments of invoices were always recorded as "Payment;ClientName" through Cash Receipts (Source), under Trade Debtors (Account) and as a Deposit.

A few recent payments have been recorded under Current Assets (Account) and have then generated a second line item with the same details (incl ID No), but as a Withdrawal, countering out the deposit.

I also have entries recorded as "Sale;ClientName" through Sales Journal (Source), under Split (Account), as a Deposit, which are actually still outstanding. I never used to have "Sale;..." entries in the Bank Register...

Could this be an update error? (Seems to have happened around 10-7-2020)