hello! I am struggling with a problem with the newest version of Thunderbird running on Windows 11 and one IMAP mailbox. Thunderbird was running fine for at least a year however some months ago, I guess after an update but dont know for sure, weird stuff started happening: Incoming mails where "mixed up" so clicking on mails opened different mails, mails that certainly had attachments where shown not to have attachments and sometimes mails where shown in raw source code form instead of properly rendered with formatting and just the mail text etc. I didnt really find anything searching around for those symptoms on the Internet, but it seemed like something was damaged so I right clicked the inbox folder and repaired it and the problems seemed to be gone for 1-2 weeks, however now they are back. Is this known and how to get to the bottom of this? Thanks for any help and suggestions. thanks, Paul