USDC
Arty
We are doing our best to reconcile the stablecoins.
Sadly, there are too many bridged/non-native assets which may require a separate price feed rather than a peg.
They are issued by parties unaffiliated with Circle/Tether etc., and may not be redeemable 1:1 to native USDC/USDT.
Please let us know which assets you are struggling with, share their contract addresses/chains as well as Coingecko/Coinmarketcap listings.