Bug #1) If you use a glider to skip by the first few enemy encounters (going straight to the encounter where you fight the boss that asks Mordremoth for help) it causes the level to bug out quite a bit; a few of the goals will rearrange themselves.
Bug #2) Also, allies and enemies both will randomly teleport to your location in the air, often becoming stuck in the air permanently; this make it very hard to kill the enemies with my Reaper Necromancer, using only Dagger/Focus + Greatsword. The only range that can hit above the Necromancer that I had were 3 of my abilities on dagger/focus (2, 3, 5).
Screenshots) I have a screenshot of the goal bugs, but not of the allies/enemies teleporting into the air; however, that is very easy to reproduce by simply gliding into the air right at the start of the level or right after picking to help Laranthir.
Not affiliated with ArenaNet or NCSOFT. No support is provided.
All assets, page layout, visual style belong to ArenaNet and are used solely to replicate the original design and preserve the original look and feel.
Contact /u/e-scrape-artist on reddit if you encounter a bug.