@Dev,What's the tranaction fee now?
I've mined .41 bil,but only received less than 0.4bil.

Any pending balance on pools? Tx fee is 0.01 DSH on most pools (10 DSH on minergate). Where are you mining?
I made an extensive investigation of the issue. The problem is in the open source pool that all pools expect Minergate are using. There is a flaw in the pool design. When a transaction passes as successful through the daemon, but it not included in the blockchain in 24 hours, it is still counted as paid. This is a major flaw in the open source pool design. Not only Dashcoin is affected by this. Every Cryptonote with "transaction life" mined by "fancoder/cryptonote-universal-pool" and "zone117x/node-cryptonote-pool" has this problem.
Also, I am not sure Minergate makes this check either. I just have no way to test it.
Pools have the transaction ids saved, so the unpaid balances must not be counted as lost.
Edit: I informed all pool developers about the issue.