I don’t know if this happens to other players but my netherite chestplate has protection 4, thorns 3, and unbreaking 3. I have a mending book and by using an anvil, i try to put the mending on my chestplate but it says “Too Expensive” so I exited the game and re-opened it and it didnt work even when I took the book away and just left the chestplate on the anvil, it still says “Too Expensive”. I went to another world where I put the same enchantments and when i was trying to put in mending, it only cost 9 levels. Please get this fixed it took forever to get the enchantments.