SAGE 50 bank feeds

Client has Island Savings bank account.  We did the bank feeds and when the matching comes through it doesn't pick up transactions for a vendor auto debit.  Did this for a single day and the one transaction was missing off the feed and could not be matched.  Although it clearly shows on the bank statement.  Reconciled it off the regular bank rec screen.  Next did the next single day and same thing, vendor auto debit which cleared the bank and shows up on the bank statement didn't come through the bank feed as a transaction. Anybody seen this and know how to fix it?