When you ran your AR and AP Period End and/or Year End for May 31 - were you 'signed in' to AR/AP with a May 31 date, or with an Aug 30, 2001 date?

If you signed in with August's date, and did not notice this date beside the PE/YE screen option 'Transaction clearing date' the transactions would have been cleared using August's date...as if it were the August Period End and not June's.

However, it sounds like you are trying to print the subledger batches retrieved from AR and AP from within Ledger. Is this is the case? Or, are you actually trying to print transaction reports from within AP or AR? Ledger should not complain about printing a batch that was retrieved from those modules, unless the Fiscal Period does not match what is set up in your Ledger...?!