I put a book on my WL, and it's not showing up on my list. If I look the book up, it says it's on my WL, but it doesn't show. Anyone?

I have had this happen before, most of the time it's there, but for some unknown reason it doesn't always show up.  I'm not sure there is any rhyme or reason, but if it keeps happening, please let someone know (a TG in Live Help is best).  And it's probably best to double check on it later tonight or tomorrow.

FYI When I look at your WL, I see 115 books, including one "Invincible" added today. 

That was the book and as of five minutes ago I still didn't see it. That has happened to me before, and it never did show up. Thanks...I'll go look again.

In case anyone has trouble with the same thing, I looked again and it still wasn't there, although Diane could see it, I still couldn't. I changed the setting from 'sort by author' to 'sort by title' and it popped up. Weird.

Sorting by author often causes books to "disappear" -- why? Because there is no author listed. At least that is my experience.

It depends on the database the book data comes from.  Some are lacking the author info.  You can go in and do a data edit for the book.  Anthologies and kid's books seem to be most problematic. 

The book edit team often won't enter book edits on books that are not yet released.  Not until the publisher confirms the info.

You can sort by title or by date to have these books without authors show up.