I am running Thunderbird 115.5.0 (64-bit) connected to outlook.office365.com via IMAP. Recently, Outlook calendar invites have displayed as blank e-mails in Thunderbird. Previously, they displayed the information about the event with a banner indicating that it was an invitation to an event (see attached image). I don't know if this is a problem with Thunderbird or Outlook. Previous calendar invites display just fine. This is a problem both with Windows 10 and Linux (Ubuntu 22.04).