3rd attempt as no reply... Hi Nikola.
I know this has been a while but I have been busy on other things but my client is getting more and more furstrated with the double bookings.
I am still having the same issues as the orginal message. Which basically is that if you create an appointment directly into Google Calendar, EA will not block off that time in the appointment form. This includes exact times and overlapping times. If you create an appointment from the EA form then the Google Calendar gets updated – so they are talking successfully. I can confirm that I am on the latest version of EA plugin and the Connect plugin.
Wayne