Bugs Deleted/Missing books in the Author's series and publishes

[Cramezzon2003]

I haven't checked my Scribble hub for more than 3 years and I would like to ask if there's an occurring things where and Author's books doesn't show up in their series list or being deleted without the author's awareness. I have over 20+ books that some are hiatus and some are posted but in the Series list it only shows 7 books and the rest are non-existent unless searched in google or checked on the Misc. list on the book relation, but even then the book contains no rating, no chapters, no drafts nor any interaction, I can add new chapters to it, but it still doesn't show such luck on the series list. Is this a Deletion of such book or something?

It shows I have published 7 books but in Misc. it shows at least 20 books. Even the Book cover is gone