Thunderbird v128.4.3ser (32-bit) setup with 4 accounts: Shaw.ca (POP), Shaw.ca (IMAP), 2xGmail (OAuth2). The Shaw.ca (POP) account is the main one, and it stopped receiving email. Another (related?) issue is that Local Folders does not appear. The size of that one Inbox is 4.0GB, which I understand is a limit. I don't want to delete any of that email, but I'm fine with moving/archiving some of it. I moved a whack of it to an Archive folder, but the size of the Inbox and Archive folders don't change (4.0GB + 0.0GB). I have tried repairing and compacting. What can I do? I'm a technician/troubleshooter with many years of experience with Thunderbird ... I recommend it to all 6000 of my clients, because (until now) it is bulletproof.