I'm not sure if it is a bug or a feature because I get this warning during sync:
WARN | Unable to insert event (Test)!
Entry can not contain both gd:when and gd:recurrence elements.
Nevertheless, when I use compareable programms, such as ProviderForGoogleCalendar addon in Thunderbird, the same calendar entry can be inserted to the google calendar. The entry is a birthday, e.g. the date is something like 02.02.1922 (full day) and is recurring every year. There is obviously a way of syncing, so the warning isn't quite helpfull and furthermore the entry is deleted after the failed syncing, which may not be desired by the user. BTW, i'm usinf the (offline) file sync method with version 1.0 beta 16. Any other problems are reported.
Thanks for help and looking forward for suggestions,