Okay so I finally got past the defend the silver dude, only to right away get another quest that's bugged.
When I go to the North corruption site Shaazah gets in a forever cleansing thing.
I remember there was a glitch like this on PC as well for this quest.
I'm on XBO. I know I'm not the only one having this prob, tons of other people are standing around waiting as well.
Restarting the quest and logging off does not fix it.