I moved a bunch of emails from one folder to another within Thunderbird and now those messages will not load in the new folder and so are inaccessible. Any thoughts? The target folder populated with hundreds of inaccessible messages all bearing the date of the transfer rather than the actual message dates (and it represents four years of messages in that folder, properties shows that there are 2424 messages. I tried "repairing" the folder but that did not make those messages accessible.