Recently I was unable to SEND invites to anyone, but I fixed that. My e-mail address had disappeared from the "edit calendar" window, who knows why that happened, I have added it back. Now I can send invites to others including a second email account of mine, the ICS files arrive but when opened the "Import Event" button does nothing. Everything was normal until a week or so ago, then something broke or maybe there was an update that had a bug in it? Any suggestions for a fix?