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.