Trying again as no responses and still have the same problem. Years long now.
Just updated to v22 and here I am again with this same issue that I could never resolve either in v20. I cannot integrate more than a week on my calendar because the Advanced Preferences for Google will not work. It is a new install, no firewall during install, running as Admin as far as I can tell and again this button doesn't work meaning my calendar sync is off. This button works for none of the options provided.
I've made due with this for years and was hoping this would not be an issue but, nope. I would really like this to work so that I have more than one week in my calendar if not a recurring event. Thanks.