Hi Native,
I also noticed this. When you disable all of the shared calendars, the users main calendar comes back. You can then add the shared calendars back in one by one, and they will also display. These changes do not get retained though when you exit the browser and load it up next time, this process needs to be repeated in order to see the entries again.
Looking at the
JS errors in the debug I suspect you might be right about a parsing issue!
Best regards,
Gary