I don't know exactly how to reproduce the glitch or what is even causing it, but I noticed that for some reason my twice my librarian villagers seem to have changed their trades after they are locked in from me trading with them once. Example, the villager shown below had a trade of 30 emeralds and 1 book for a frost walker 2 enchanted book, but now for some reason it has changed to bookshelves. I messed around with workstations a bit but the trades aren't supposed to change at all after I trade with them once right? Please fix this since it is costing me and possibly others helpful villagers.