Trading Issue with Lib

Open trade with a villager. Villager show price of trade. Input to trade recieve trade but emeralds and book do not get traded. I receive book, close gui. When i look in inventory book that i bought is gone and emeralds and book still in inventory. One time it took 3 extra emeralds. This was a different trade but same issue with inability to complete transaction. Sorry if screens are in weird order.