getting back to masternode rewards: I still have a feeling I'm missing out on them pretty often.
here's what I got recently: https://imgur.com/a/rZpyzqg
(sorry can't embed pics because newb account)
Now with 15 master nodes (and the 16th sometimes popping up), I should be getting a bit less than 4 rewards per hour, pretty consistently. SOmetimes they do come 4 per hour but sometimes not, see the pic.
Could it be that someone has found a way to game the queue system?
There appears to be 18 masternodes online now (you can get the count on your own masternode which is more likely to be connected to them all (and thus see them all) with the command: getmasternodecount).
Most likely some of them have not enabled incoming connections and thus are not connected to or visible to all nodes.
At least one person is also having trouble setting up a masternode in a non-standard way, creating some fluctuation.
Those alone would account for the difference that you mention. The masternode rewards system is based on established coins so if it can be gamed, lots of other masternode coins would also be affected.
Since it took longer than usual for your masternode to start getting a normal looking amount of rewards, I wonder how many connections it is seeing? And does the total amount you got in the last 24 hours seem normal if you count 18 masternodes? They might not be exactly fair to the penny in one hour as the system is not quite as simple as a standard queue but given a longer duration, should amount to correct amounts.