Meeting invitations responses are only sent when I decline the meeting, why?

Hi,
I have a blackberry passport and I love it! I always get questions about it! So Thank you!

I do have one issue with accepting or declining work gmail calendar invites.
My phone only responds to meeting invite with an email when I decline the invite.
If I click accept, nothing happens. If I decline first, then accept, then my status on google calendar is accepted.
How do I fix this?

I have a work gmail account which I've set up using Microsoft Exchange Active Sync.