Obtaining knowledge from a pearl bookshelf doesn't work

Bug Name:

Obtaining knowledge from a pearl bookshelf doesn't work​

Bug Description:

I did let my twinks read at the bookshelf for 1 day, I did repeat it 2x there is a timer.
ca. 3.600seconds = 1hour.
I used 4chars.

"Liest Buch" = reading a book.
the 4th isn't visible on that screen.


like you see above this comment, the numbers didn't changed to the first pick, my Monster ranks (C->S Rank) didn't increased also the 2144 knowledgepoints didn`t changed.


there after 1:30 you can see how it should work.​

How to reproduce/proof:

Uhm... hard for you guys, get a char and let it read. Press H and check your knowledge before and after 1hour.​