the first blocks (#19) were mined via daemon. then i tried to mine the #20 with miner+proxy but the daemon complains.
just a feedback, i perhaps did something wrong.
Because there is cryptonight algo before particular height. You need to change 1 to 0 here
https://github.com/sammy007/monero-stratum/blob/aeon/hashing/src/hashing.c#L4 and run
make again. Or modify aeond to enforce light algo since block 1.