@gitaganapathy As I said, maybe it’s just something that I don’t understand, but… It might be that there’s a problem changing the value of the dropdown. Either it’s a bug or a “feature” - that is, the expected/desired behavior. If it’s a bug, it needs to be fixed; If it’s the expected behavior, then the docs need to be fixed.
As I mentioned before, I would suggest contacting Wix Customer Care as they are smarter than I.