After creating 2 email POP accounts to the same provider (different accounts), each synced after creation and the All Inbox worked as designed to show all emails. I immediately noticed that when my view is the All Inbox, pressing the sync icon does not sync both of my POP accounts and tells me to check the logon id and password.

I can make the non-synced account the active view and it will sync when I press the sync icon without having to enter my ID or password.

This morning I added a duplicate account using IMAP and it appears to sync correctly while my view is the All Inbox.

Is there an issue with multiple POP accounts or is it two POP accounts to the same provider?