our 16: https://pso2.com/media/comic/episode-16
actual 16: http://pso2.jp/players/community/comic/pso2comi/16/
our 21: https://pso2.com/media/comic/episode-21
actual 21: http://pso2.jp/players/community/comic/pso2comi/21/
This may be intended, but as far as I'm concerned, it's a bug. So I put a topic on it in the bug forum.