RSVPs show up incorrectly

Hi everyone,

Does anyone else have inconsistent RSVP displays?

We've been experiencing this for a few weeks quite randomly where a member of the team RSVPd in a certain way (Yes/No) and Outlook for everyone shows that they "have not responded."

See an example of my own RSVP (Yes, I attend), which shows as Not Responded.

Is this a bug?