I was able to get it to work by adding a State column to the csv and changing what is currently State/Province to County. I've attached it here.
Hope this helps!
UKGeoData.csv.zip 262 bytes
Thanks Tracy, that worked great!
I am having the same issue with my import file. I have Unique ID/Country/State/City in my import file and it still ignoring my one line in the import file. Please help. I am attaching both the import file and the input fine for the tableau. Just for your info, the city I am trying to add to the map is a very small city.
Your help is very much appreciated.