Your wallet will show a combined total of all addresses as when you stake, it's often on a different address even though you can't see it. Explorer will show the specific balance for that specific address. It can not know all the addresses that belong to you, so that's why there are differences.

Hi
use supernet light client; in the basic screen you will see an amount of btcd that's the same of your amount of superbtcd (of course under the section btcd..). Simply send btcd to your wallet using "coin operation". In a couple of days you'll receive the coins. Min amount 0.5 btcd. bye