I think the timers for the public events are bugged....they disappear and sometimes they its just don't appear.
changing areas will bring them back. like if ur at taz and it disappears then if u run all the way to the front entrance of that...errr castle? whatever that place is called, it will come back. it will also come back when the time updates to indicate if the events r starting or if they have ended. but thats only for ch1, ch2 doesnt have the timers but the events still take place and the timings match with ch1 events.