[RESOLVED] Sleepywood Explorer (Medal) impossible to obtain

Describe the problem. Be as specific as possible!:
You can no longer obtain this medal, as exploring Sleepywood no longer counts towards this medal's progress, which makes obtaining Victoria Explorer and Maple Explorer completely impossible. Unless you have done Sleepywood Explorer before Big Bang update.
Not sure if it's exactly a bug though. But it seems weird to me.

If it doesn't work like it's supposed to work... it's a bug!