Cash flow projects forward in three layers:
The switch to show only what is owed turns the third layer off, for when you want certainty rather than a forecast.
Alerts
Settings → Liquidity alerts. Set a floor and a horizon — "tell me if I will drop below $10,000 in the next 30 days" — and you are emailed when the projection crosses it, while there is still time to invoice somebody or delay a payment.
Why it can look wrong
The projection is only as good as what is entered. Bills you have not recorded do not exist to it, and an invoice not yet raised is not owed to you. If it looks optimistic, the usual reason is bills sitting in a drawer.