For everyone using the 1.3 wallet, there is a new release out that is mandatory.
https://github.com/NewYorkCoin-NYC/nycoin/releases/We are continuing to test the block generation of 1.3 (initial tests went well) so if you are actively mining please use the wallet versions 1.2 or below for now. Once we are sure all block gen issues are fixed we will sound the all clear for miners as well.
Again, if you are using the 1.3 wallet, be sure to download version 1.3.1.17.
Thanks,
Slosh