Thank you for your reply.
We are on 2013.2 724
This problem doesn't happen all the time. It isn't something I can re-create specifically. If I do the same thing 20 times, it will likely happen once. It is a very simple implementation of a watermarked text box, with a binding to an object (mvvm). We have a Got and Lost focus event, which only comes into play when a user enters the box. So, in this case, that part doesn't apply. This problem happens when we are loading the screen with the user's information from the database.