Hi,
In order to fix calendar issues reported by many users, we installed the 29th june update this night.
Since this, we have now complaints about the exact same issue you've reported and our customers are asking us if we want to keep them as customers...
We opened a ticket about this, but I guess we'll have no feedback today as it's national day in US...
Also each update takes at least 20 minutes of downtime. Stopping services, uninstalling, installing new version and then waiting at least 10 minutes that the service is answering again. It's really painful as updates are at least once a week and seems to be basically bug fixes, and sometimes even twice a week.
It's more and more difficult to keep a quality of service in these conditions.