Guild Wars 2

Mission will not finish, I took the high road through the tunnel avoiding the mobs. Infinite Spiders are spawning. Even after NPCs and I broke combat still no update at the portal.

Okay, the final part of that run was me running back and forth from beginning to end about 5 times. I died to try and fix it, nothing fixed it.
I ran it again just sticking to the low ground both forward and back and it didn’t bug this time.