Hi - I am having the same issue as Brandon. As he mentioned, we have already successfully gone through the steps of adding a new calendar via ICS URL. The issue is that now when a calendar event in Outlook gets updated or added, those updates do not reflect in the Google Calendar. For example, a meeting I was supposed to have today got moved to Friday, however the Google Calendar still shows the meeting has happening today even though I've accepted the updated meeting invite in Outlook.
Any advice on how to fix this sync issue would be appreciated as it's very frustrating and I haven't been able to find a straight answer in any Q&A forum.