Every CMC users, before doing any transactions ( include send money or receive money), please backup your CMC wallet at first, seems CMC network has been attacked, many orphan blocks.
If you need to resync your CMC block data, please use addnode=199.71.215.196 in you cosmoscoin.conf which was located in %appdata%/CosmosCoin , in fact, I suggest all CMC users, resync your block data with this node, this node has no orphan blocks.
About CMC version 2.0, we are still working on it, just be patient, you know it's not that easy to implement completely new features.