Since updating Thunderbird 64 bit to v147.0.2, then to v148.0 (1st March 2026, just now), requesting the display of 'Unified Folders' (in Folder Modes) does not populate the unified Inbox with messages from ''any'' of my eight registered email inbox sources. The individual inboxes with their contents can be displayed below, but not in the unified Inbox. Since being introduced several versions ago, I have found this feature very useful when checking my various received emails, and it is frustrating to be without it. Can anyone suggest what I may or may not be doing to get this feature to work any more? I have been all through Settings, but cannot find anything relevant to this problem. Cheers, Sam