Fort salma siege event broken
Definite bug. Report it in the Bugs forum with your server.
It was broken on my home server Desolation – the centaurs were constantly sieging Fort Salma, you had the markers above some of their heads, but the event wasn’t running. The only thing that ran was the centaur bridge event – no Wallwatcher Camp, no Lieutenants, no Overlord. I guested on Gandara and Underworld and it was the same.
However, with today’s patch it seems to have been fixed, and it ran the same as it used to today.