I have a survey setup where I want a select one question to default to 'None'. The question is asking who is the second person you're working with. I put 'None' in the default and everything works great. I then add a choice filter to the name question based off region. So people in Region 3 only see names of people in Region 3 and people in Region 4 only see peoples names in Region 4. This seems to break the Default value of None even though None is a choice for Region 3 and Region 4.