I have enjoyed google calandar for many years I kept my trust on Google clandar for many years. But no reason what ever I add go missing. If I try search an old appointment nothing to be found. I restore my data from back up in few seconds that goes dissapear. And I see I am not the only one who complains about this. I bought another clandar app and that gave me no trouble my data is safe there since the day I started using it. Please fix that issue it not out calendar storage it is your app.