I've made a patch available that only affects the Linux release as it was found right before releasing the Windows release of V2. To patch please follow these steps:
1) Download http://install.neoscoin.com/patches/linux/trade.class.php
2) mv trade.class.php /usr/local/neos/wallet/include
This should resolve any issues with balances for Bittrex not showing up properly. Please let me know if you have any issues or questions.