villager trades flash briefly when you right click but you can't trade

This is an old world that was created before the update, but then I updated, backed up and loaded the world, and then I started to play. The villagers were updated, and there was one villager I was trading paper with, so I tried to trade with it by right clicking, and the trades only flashed for a blink of an eye without letting me enough time to trade with it or even look at the trades.