I just got a call from KIA customer service that there is a new map update to be released soon which is version 12.5. I was told that there is no longer access to version 12 so as soon as the newer version 12.5 is released that will get sent to me instead.
The Kia map update website is bad. It's got the 12.5 update announced on the home page, but the search function redirects to a separate, Canadia Hyundai website, which requires a separate account.