Problem with lock PIN Codes on 2Gig as a secondary controller to Vera

I have my 2Gig controller as a secondary controller to my Vera Plus. Everything is working great on the 2Gig controller and on ADC, except for an issue with my three Kwikset locks.

I removed the all the PIN Codes from the Vera Plus interface. Then on ADC I have created 5 users and the PIN Codes get added to the locks (User 1 - User 5) correctly and everything works beautifully. The problem is that after a day or so the first PIN Code gets removed somehow from the locks and then none of the PIN Codes work on any of the locks.

What could be causing this problem and how do I fix it? Is there a way to restrict changes to the locks PIN Codes after they are set correctly?

Hmm, my guess in this scenario is that the Vera may be inadvertently syncing its own codes (where none exist). I do not know of a way to limit this if it is happening automatically. There may be a way to do so in the Vera Plus UI.

When was the last date when codes were overwritten?