There are also issues with numerous movement abilities on the actual Dawnbreaker ship itself. I’m most familiar with how it works with vengeful retreat. Like disengage (which is probably also bugged), VR is normally supposed to make you jump backwards quickly. But on the Dawnbreaker it sometimes sends you any other direction. This can easily get you killed on the first boss, as VR is part of havoc’s normal rotation. The bug seems to stop (or ive been lucky) when Rashanan lands on the ship.
I know evokers also have at least 1 or 2 bugged abilities in there, but i dont know which ones. I believe a mage said that alter time did not work properly either. There could be other class-specific bugs that I don’t know about.