Huh, that's unfortunate, it may not be working properly, I'll try and pass it along to Bedlam, so they can hopefully make sure it's working in time for the planned Hotfix.
It seems like it may be working in practice, but doesn't appear in the examination screen. When I finished an assignment where Hypnotic was a critical success skill, the racial trait was listed at the end of the mission. But, strangely, not only was it absent from the initial embarkment screen, but so was Hypnotic itself, and a lot of other skills that should have provided bonuses to the mission. In fact, only two traits from each slaver were shown next to them when it was showing everyone I brought. I forget whether that was a thing in previous versions, but I feel like it wasn't.
Incidentally, during the quest itself I noticed a few issues. I was doing the Temple Infiltration assignment, and aside from a few typos and grammatical errors I noticed throughout, there was one major issue in the third part of the quest line where and entire paragraph of what I assume was from another quest was added to the end of the first page. This happened during a standard success while my encampment leader was one of the people sent on the quest. Additionally, while the text of the quest suggested that I had gotten two new slaves, none showed up in my encampment. I think one of them might have been linked to the converted nun as her "assistant", but the text definitely described a second character joining as a slave, which they never did. Also, when the nun was shown gaining and losing traits at the end of the mission, it only showed some of the traits being lost and gained. I didn't realize she had gained some of them until I saw stuff like Thrallforge available on her level up screen.