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Outlook event invites display as blank e-mails in Thunderbird

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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).

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).
Attached screenshots

Chosen solution

This issue has apparently been resolved with Thunderbird 115.6.0.

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Chosen Solution

This issue has apparently been resolved with Thunderbird 115.6.0.