Google Calendar sync problem emclient 9.2.2157 (5b49542)

I have a problem with sync with Google Calendar. If I create an event for Google Calendar in EmClient the event is created and synced to my other devices.
However, if I receive an Meeting Request by mail for the Google Calendar, I accept the request, and it appears on my Calendar in EmClient, but it is not synced with Google and it does not appear on my other devices.

Basically I cannot accept meeting invitations on EmClient for my Google Calendar.
Any help to solve this problem is welcome.
Thank you.