Problem booking an annual recurring calendar entry for birthdays

My calendar is of the type that syncs with with Google calendar.  Booking individual meetings in eM Client calendar works fine but when I tried to enter some birthday bookings with annual recurring dates something strange happens.   The entry briefly appears (for about 3 - 5 seconds) on the screen in the correct calendar date/time but then disappears never to return.   Help

More info.  I am on version 7.0.26687.0

When I look in Google calendar these bookings show up for the first year but with the “Repeat: Annually on September 11, until Sep 10, 2016 Edit”

This is incorrect as I booked them with no end date.   eM Client is replacing no end date with an end date the day before the first booking.   This is an obvious bug that needs to be fixed.