No, it's not only you having this problem. I had this last night and yet it worked fine before the latest patch.
BTW, you can verify something for me. When you take a book off the shelf and the bookcase becomes unresponsive/unselectable, can you try another game item that requires "Press X to activate" and see if you can use it?
I tried the sliding tomb access for the thieved guild and I couldn't activate the process (after I encountered the shelf bug).
