I recently added a series event to my Calendar with no end date. A few days later I had to delete the first event in the series due to a change of appointment. This gave me the option to delete the event or the series. I chose to delete the event. On the next occasion I needed to delete the whole series but it now only allows me to delete one event at a time and not the series. I have a Curve 8900.

Is this normal or is there a known fault?