For anyone coming late to the party...  The chain split at block 344310..  We seem to have fixed the error.. but you will need to re-sync your wallet to a node that has the correct chain.
Go to your config file and:

Addnode=108.61.164.102.10101

Delete all other nodes and click "Save"

Then in the "Wallet Repair" tab click "Delete Local Blockchain Folders"
Wallet will re-start and sync to correct chain
Thanks to BAKfr  for your help fixing this problem!