Re: [ANN][GRA] Graincoin - New PoW/PoS coin | Fast, secure | Version 1.4 Released!
Ack! I thought I had lost about half of my GRA when I upgraded to the new client. The transactions showed up in the wallet, but they weren't showing up under balance or stake 
.
Fortunately, changing the wallet to wallet.dat.bak, starting a new wallet, and importprivkey with all of my private keys was able to solve the problem.
.Fortunately, changing the wallet to wallet.dat.bak, starting a new wallet, and importprivkey with all of my private keys was able to solve the problem.
The effect you did may be achieved by simply start the wallet with option '-rescan'. The final effect is the same - the blockchain is searched for all addresses in a wallet and the balance is recalculated. When you import a key then it is also scanned to find all transactions with the address being imported.
Sometimes when wallet was not shut down properly due to any reasons the inconsistency between the actual balance and the balance shown may happen.
Edit:
You can't lose any crypto coins (built with bitcoin's technology) unless you lost your keys as all transactions are kept in the blockchain. So backup your wallet.dat regularly. It is a must thing to do when you update the wallet app.