Unconfirmed balance in MultiBit HD plus unconfirmed transactions (failed bitpay orders)
Following this suggestion in the GitHub issues page solved the unconfirmed balance in MultiBit HD. 

I performed the following in Windows 10:


Closed the MultiBit HD Application
Navigated to the wallet data in %AppData%\MultiBitHD\
Rename the folder mbhd-12345678-... to old-mbhd-12345678-...
Reopen the MultiBit HD Application.
Restored from wallet words (Requires words and datestamp).

Note: I did not have to close the application during synchronization like the GitHub comment suggested.
After synchronization, the unconfirmed balance was then confirmed. I was then able to transfer my balance to another address and software.




At the time it just appears to have been an over flooding of transactions making confirmation slow especially with my low fees (0.1 mbtc, 0.5 mbtc, 0.75 mbtc). Wallet balance transfer and the two unconfirmed transactions have been processed and confirmed.