I'm still trying to solve my own null profile issue. In doing so, I noticed that my ninth and tenth inventory slots are not recognized by Lucy. They do appear, which is good, but they are listed as "unknown31" and "unknown32" respectively, instead of General9 and General10. This may not make a difference to anything, but I thought I would bring it up.
I realized the moment I fell into the Fissure that the book would not be destroyed as I had planned.