So I don't remember exactly what was happening with verses, but right click was working fine, it was dragging with left mouse button that bugged. I think once when I tried to remove a verse from a book by dragging it disappeared completely and I had to reopen the verse-book for it to appear again.
With the carpet medallion, if it is not meant to be acquired by air, you should make something that hints at it. Because right now, there's nothing indicating that getting it by air is the wrong way, you just die in the air as if there's bug and no indicator of what killed you is there.