I am getting some weird behavior trying to pre-populate profile values into a dropdown list values with the latest Live Forms version 5.7.9. I believe it is a bug.This is a problem that didnt exist prior to the recent update. First of all, the [Profile:country] token doesnt work. So I created a sql action to get the value form the database. However, it will just show the value in the dropdown with no option to change. We had another dropdown field on the form that maps to a custom profile list field. When using the [Profile:xxxx] token, it sets the value to the raw token, then shows the actual value in the list, but none of the other options are available to select from. If there isnt a value for that field in the profile, none of the options populate. I had to give up trying to populate dropdown field values from the profile, because regardless as to whether I am using the token in the default value, or a sql action, it will not populate the field options and value correctly. 

I found another bug with the dropdown fields as well. I tried to set a default selected value to set the country list in the event a value doesn't come back from the profile. What I found is that the form will always populate with that country selected regardless if there is a profile value that is different. I hope these issues could get addressed on a future update, as I am currently unable to get a default value set on the dropdown fields set properly.