Lania may not be present until the quest Time to Study is completed. Need additional confirmation on this, please!
semi-confirmed: got quest ran to lania; wasn't there. Did time to study up to the point where I had to turn it in went to lania's position and she was present (maybe some bug, would suggest someone else pick up this quest then logout/leave eidolon jungle and come back to see if she is there)
not bugged, just too many people doing quest line. need to be the only one to hail Lania in order for her to show at 2nd location.