Yes, resyncing fixed it. First, always keep at least one safe copy/backup of the wallet.dat elsewhere. Then close the wallet and delete/rename everything but wallet.dat (only really important file because it contains all your address and wallet data), peers.dat (not important but might help reconnecting) and Omicron.conf (no use setting one up again). Start the wallet and it syncs up from scratch. The coin is still quite new so it doesn't takes that long.