You have to wait a few blocks for the coins to confirm as with every other coin, there is no problem.
Ok thanks .
Sia requires usually 144 blocks for coin maturity, I'm already paying after 100 blocks, so you'd have to wait approx 100 x 10 minutes before your unconfirmed coins can be paid.
Each block has a block time of 10 minutes
And if you are looking for an even faster payout, SiaMining.com pays out balances greater than 2,000 sia every 36 blocks (6 hours.)
