ETH sum shown in Dashboard conflicts with wallet sums?

CoinTracker’s dashboard page notes that I have an amount Z of ETH, but CoinTracker’s wallet tracking correctly notes that I have X ETH in my Coinbase wallet and Y ETH in my Coinbase vault. X + Y > Z.

How can that be? How does CoinTracker determine the sum in the dashboard page?

I think something is off: The dashboard also ignores my BTC in Coinbase.