Okay, returning to the original question, before this thread has to be shut down, the only information I know regarding Jeri Ryan and Jennifer Lien is from the Memory Alpha article on 'The Gift', which features a short recollection from Ryan.Did they ever met or share any scenes together? It's been a long time since I watched Voyager.
https://memory-alpha.fandom.com/wiki/The_Gift_(episode)
For anything further, one might have to find an old copy of that magazine, but I doubt if there's really any more. I haven't seen any of the latest documentaries or books on what happened.After completing this episode, Jeri Ryan said about her relationship with Jennifer Lien, "We rarely crossed paths and I don't know if that was an intentional scheduling thing or not, in order to make the transition easier. We only had two scenes together in the two episodes that overlapped. She was very nice, but I did not get to associate with her much." (The Official Star Trek: Voyager Magazine issue 14, pp. 37-38)