Newest news: https://www.fantasyflightgames.com/en/news/2019/10/22/the-expedition-team-1/
From the article and the FAQ within Serpents: Daniela's ability triggers regardless of who solves the puzzle and where she is relative to it. It's universal, just like Yorick's.
Interestingly, they also posted "The Story So Far" from their reverse sides before their cards on the article. I think that's a first.