I use Coinflation to update the intrinsic value of my coin collection. I've noticed that the site is only updating the silver values of a coin's worth and no longer the copper, nickel, and zinc values. The last update on these metals was 20 December 2019. You would think that the update would be easy as each coin is based on the daily price of these metals with the exact same content of the metal distribution in the coins.
It does seem odd that they'd stop updating those prices. I wonder if they're even aware that it's happened. I hadn't noticed it myself -- as long as those metal prices are a small fraction of the coin's face value, I find it hard to pay much attention to them.