Thanks for trying to help, but this is not exactly "Transaction too large" but "Transaction too large for fee policy" error, which is quite different story.
In other coin pool I was easy able to make single transactions of 20k coins made of many parts of which no single one was bigger than 15 coins, with few screens of tx moving thru the screen.
Here I can't make payout of 40 from 40*1coin, where 1 coin is full block reward :-D
Still, transactions as big as 10 coins go out without problem. For me it is more this coin wallet transaction limit,
what I just confirmed by manually sending 100 coins, with result:
.
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 50
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 40
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 30
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 20
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 15
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 14
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 13
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 12
c6c3cb34c59d7372bee5c733025c315dd45b563f45640bd1df4c431d682463a6
This is really a joke, you can't send more than 12 coins, made of parts of 1 coin.I'm also even more worried about other error E0005, which stops payouts in 1st place, and occurs, as I said, when new blocks start to flood wallet.