This transaction: https://blockchain.info/tx/c7916a9c877d0ce73aa9480764a340dd3158abd5f2f07492c1cc32d9971673b7

…has been mined in this block: https://blockchain.info/block-index/1457980

…however when viewing the transaction, it shows that is it "unconfirmed". When refreshing the page lots of times, some times is shows the correct info (3 confirmations), sometimes it shows "unconfirmed".