Upon post-upgrade startup, TBird reported that existing filters were automatically disabled because there were no subfolders to copy the messages into.  The filters are still present, but are now disabled.

Attempting to re-create the subfolders manually result in nothing.  i.e., existing folders are missing, and new ones cannot be created.  No error messages at time of creation, just nothing shows up.  This may be a scan/display issue?

I've used these filters for years to handle LKML and fedora mailing lists, which are very chatty, so this is now really filling up my main mailbox.

This is the first time this particular issue has occurred.  I hope that somebody else sees this, reports it, and resolves it-

I've been using TBird for several years with this IMAP config. After latest update this morning, all subfolders for the IMAP server I use are suddenly gone. This was working correctly this morning prior to the upgrade. Upon post-upgrade startup, TBird reported that existing filters were automatically disabled because there were no subfolders to copy the messages into. The filters are still present, but are now disabled. Attempting to re-create the subfolders manually result in nothing. i.e., existing folders are missing, and new ones cannot be created. No error messages at time of creation, just nothing shows up. This may be a scan/display issue? I've used these filters for years to handle LKML and fedora mailing lists, which are very chatty, so this is now really filling up my main mailbox. This is the first time this particular issue has occurred. I hope that somebody else sees this, reports it, and resolves it- ron