The Accounts Payable reports include invoices coded to other payables accounts than the one you selected on the General Ledger reports.

Use the Period End Report for AP Accts and click Ranges to select the correct payable accounts.

If the Ranges includes an account that isn’t a normal payables account, then invoices had this account coded as the Accounts Payable account. You'll need to correct any invoices with the incorrect account to remove the account balance.