Since 5 days (or more), one masternode was one of the 495 nodes in the oldest 1/10th (by last payment) out of all enabled nodes, and I was waiting for the reward.
But, yet his payout status in privex.io is "Not Qualified (false: 'is scheduled') ".
The status is still "Status: ENABLED", but the queue position is now "Queue Position: 4715 / 4957 " (it was yesterday in the 495/4957 and no reward was done since yesterday).
What does it mean ?
No issues with others masternodes.
The payment is just arrived: I deduce that the error message corresponds to the time that the paid block is spread through the blockchain network.
This is the first time I have come across this message: no idea how long it can last.
All is ok now : just a very unlucky masternode in the payment pool (6 days in the payment pool : the average is 495 masternodes / 288 blocks per day = 1.7 days ...).