Yes, I have noticed this just today myself. The style maps are fine up to zoom 06 but then the "normal" styled Google map tiles appear from zoom 07 onwards JUST for S. Korea. The surrounding map tiles around the country are the style that I customized.
Does the S. Korean government have an issue with users styling maps of their country at street level? Please reply and confirm. Jason -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-maps-js-api-v3/-/qFFfd6CCNTQJ. To post to this group, send email to google-maps-js-api-v3@googlegroups.com. To unsubscribe from this group, send email to google-maps-js-api-v3+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.