My wallet was stuck at 41299. Same as the Block Explorers: http://cryptoblox.com/chain/CornerstoneCoin.
Unfortunately, I had around 1.8M coins in staking stage. After re-download the blockchain undoubtedly the staking coin were gone.

Just tell someone else remember to backup the wallet before the wallet begin to stake. That's the way to get the coin back from wrong blockchain. Or is there other ways to save this situation that I didn't know?