US Dataset still downloads after being deselected during install

Currently creating a /Layout package, during the configuration you have the option of selecting and deselecting datasets for install

I choose the UK and deselect the default US dataset

During install the application still insists on downloaded the US dataset, I have had this with update 4 and now in the latest OBD update 5

Im trying to keep the install size to a minimum, why provide the option if its ignored.

Cheers

Chris