I can't progress any of Lyriel's quests.
I have one quest that requires me to talk to her and Caitlin in Cait’s room (the manga quest), another quest that requires me to talk to Lyriel while she's cleaning the library (her main quest), and a third quest that requires me to progress her main quest.
The problem is that she never goes in the library or Cait’s room, at all. The manga event with her and Caitlin never shows up, and she never cleans the library. And everytime I try to talk to her and click "Ask her to...", the option to have her clean the library never appears. It's been like this for a few dozen in-game days.
Is there something bugged? Am I doing something wrong?