I use Outlook 2011 on my Mac and connect to Office 356 for email. Over the last few days, when I accept a meeting invite, it gets moved to my deleted items (which is typical), but then disappears from my calendar. I can find the invite in my deleted items folder and it will indicate that I have not accepted or declined - it will say "please respond." If I accept, it will go back on my calendar, but then will disappear again later.
If I go online to Office 365, the behavior seems to be the same. this is a bad problem, as I am missing meetings when they disappear. Any advice?