Unlimited Bookshelves has quite a few "dirty edits" which may not actually be the fault of the author. It is a simple process to clean the file using TES5Edit and, if the author would do so, it would benefit all users.
I have cleaned my copy and it is really nice not to see it continually come up in the LOOT list as having problems.
Unlimited Bookshelves - Endorsements (1 comment)
I have cleaned my copy and it is really nice not to see it continually come up in the LOOT list as having problems.