Guild Wars 2

I was doing my lvl 51 story mission and im told to patrol all the areas on the map but i cant finish the ones for the kids because 3 enemys pop up i kill them and than nothen happens i just went ahead and did the last point and i cant continue till this is done.

five months and nothing has been updated about this? I’m trying to do this mission right now and it’s still bugged. I have patroled every other area. This is the one green marker that won’t disappear. Please look into this.