Missing Badass Ranks

Downloaded a compatibility patch last night and all of my Badass Ranks (One play-through worth) had disappeared.
Is there anything I can do about this?

I assume you lost keys as well? (If you had them) Maybe even some customizations? If you lost any that you redeemed via shift code, write it down and send in a support ticket here with mention of losing your badass rank and any keys : https://gearboxsoftware.zendesk.com/anonymous_requests/new