Now it works, maybe it was a bad luck block.
Another question:
In the config.ini is correct this settings with N witness for N miners
witness = "1abc"
witness = "2abc"
witness = "3abc"
miner = ["1abc","5key1"]
miner = ["2abc","5key2"]
miner = ["3abc","5key3"]
or this with only 1 witness for N miners?
witness = "1"
miner = ["1abc","5key1"]
miner = ["2abc","5key2"]
miner = ["3abc","5key3"]
Thanks!