Why are my calendar invites disappearing from Microsoft Outlook?

1. Check Updated Settings: Make sure your Outlook settings are up-to-date, especially if you have recently changed your profile or mailbox. Double-check your Filter and/or View settings.
2. Verify Invite Permissions: Confirm if you can view and accept the invite when sent from another email account. This will help to determine if the issue is with the invite itself or your Outlook settings.
3. Disable Firewall: Temporarily disable your firewall if you have one installed to ensure any notifications or invites are not blocked.