睡眠ステージが記録されない問題は解決。

Thanks everyone for your patience while we investigated this issue. We acknowledge there
was an abnormally high number of users not receiving sleep stages since this past weekend.
Our team has confirmed this issue has since been resolved. It's still possible for users
to receive the simplified sleep patterns due to the reasons mentioned in this help article.
Thanks again for your patience and understanding.

「abnormally high number of users not receiving sleep stages」ってーことは少数の問題なら過去にもあったって意味かしら？？
それだと色々と思い当るフシがあるんだよなぁ。