Not sure if this is the correct subject heading.

Thunderbird 140.1.1esr for Windows 11 - no add-ons I have 4 email accounts (2 with Google). For some time I have been having trouble with Unified Folders. From the Folders pane on the left of the screen, - the Inbox and Deleted folders appear to be working as intended, if I expand either folder, it correctly displays the 4 accounts, and if I click on either folder, it correctly displays the messages for all 4 accounts - the Sent folder also appears to be working to an extent, if I expand the Sent folder, it displays the 4 accounts plus a duplicate of one of the Google accounts. If I click on Sent, it correctly displays the sent messages for all 4 accounts - the Drafts and Junk folders are both problematic - if I expand the Drafts folder, it displays only 1 of the 4 accounts plus a duplicate of the 1 account. If I click on Drafts, it correctly displays the draft messages for all 4 accounts - if I expand the Junk folder, it displays only 3 of the 4 accounts with 1 of the Google accounts missing, plus a duplicate of one of the non-Google accounts. If I click on Junk, it displays No Messages Found even though I know there are messages to be found My problem is the inconsistent way it treats the Sent, Drafts and Junk folders. I can't rely on them to drill down into individual accounts. If I need to do that I have to go online to webmail, which kind of defeats the object of using Thunderbird. If I disable Unified Folders and use All Folders everything is fine. Is there any way to get the unified folders to behave as one would expect? PS I've tried deleting smartmailboxes but this didn't help.