There is a big bug with the agenda.
When creating an event over several months, it is displayed in the calendar back-office but on the public side, the event stops at the end of the month.
In the management the page is reloaded and no problem of display. Public side, the page does not recharge, it is bad ajax behavior that does not work.
I checked on several site with the latest version of concrete 5 including a blank version.
In fact, it works just at the first display but then only the first month of the event is displayed.
Someone would have an idea to fix that? it's not in my skills.