Cannnot add event - none show

Hi.

I've got an issue where I cannot add any Events to the calendar. When I go to Add Event the list is always empty. I can add Holidays, Stay Overs, Funeral Events and Getaways but no normal events.

I cannot see what is causing this but it's been like it for a few weeks so not sure if it occured on the Update before Royaly and Legacy pack came out as I don't normally add custom events when playing but I really do want to now.

Any ideas or suggestions to what to try or look at would be appreicated.