Thank you for posting in the Community. I'm here to lend a hand with your expenses not showing on your dashboard and Profit and Loss statement (P&L).
There are multiple reasons for a transaction to not appear on the dashboard or a Profit and Loss statement. You've referenced that you've entered them as expenses, but it would be good to double check that the account tied to the transaction is an expense account. Since a P&L only contains transactions tied to an income or expense account, then any others will not appear.
Another reason for these transactions to be missing is the accounting basis for the report. There are two options for accounting basis, which are cash and accrual. Cash basis uses the payment date for reporting, while accrual uses the invoice/bill date. I've included a brief video to serve as a demonstration for a bill that has been entered and not paid: