I recorded 2 videos of the same game, in which Ambra is or becomes invisible. After my death in one video, she is invisible in the spectating seconds. The next video, she engages me and teammate Ambra in combat. Because she was invisible, i ran. She did not become visible again until i was able to kill her by attacking the DOT damage numbers coming off her incorporeal form.
side note: i also have videos of falling off the map… is that supposed to be possible? If so… new Goal!