The account list can take up to 1 minute to load the first time, because the system fetches all your accounts directly from Meta. While that happens, the field shows Loading accounts and fills in automatically as soon as the search finishes, even if the form is already open. You don't need to close or reload it. If the first response comes back empty, the system retries on its own. Optimizations you've already created don't depend on this and load instantly on the page. Use the Search account field to filter when the list is long. If the accounts still don't appear after waiting, check in Connect Meta that the connection is active, and click the green Reconnect/Refresh button if needed.