Baldur's Gate : The Sword Coast Chronicles : NWN2 Persistent World

I'm noticing a number of books in the library are not working when I use them from Shelf of Many Books.

For instance, the entire magic The Eight Schools of Magic tomes are unpreviewable and when bought, unable to be read.

This wasen't so before as I bought one of the tomes weeks and weeks ago when they appeared.

Can confirm the above, doesn't seem to load the text in the custom item use function.