My BTC balance got into unconfirmed account

[tshe]

Bug report Operating System: OSX EI Capitan version 10.11.4 MultiBit HD Version: 0.3.X

Steps to replicate the problem:

1. I have little more than 3BTC in my wallet, on 12th July have transferred 1 BTC to my another account and transaction was success.
2. Today 14th July, I signed into my account and was trying to transfer remaining 2 BTC but I couldn’t do it and I have noticed that my 2BTC was moved from my wallet account to + Unconfirmed account. I have no idea why did that happen and I am thinking its some software problem.

I would really appreciate if someone could help me with this issue.