掲示板 Forums - Green button and lightbulb visual bug

The green button is unchecked during quizzes for some words. Also, some terms don't have green button checked when you click them in sentence examples during quiz. And some words like ありがとう don't have either (green button and lighbulb) marked in dictionary entry sentences.

But overall, all the words in the dictionary do not have the lightbulb icon marked in the example sentences.(when they are highlighted in green in the dictionary entry)

for meaning-level example sentences experimental this occurs only for other words, not for the highlighted in green.
(Other than that, this visual bug described above happens even before the experimental “meaning-level example sentences” feature existed)

It doesn't seem to be anything serious, it's just a visual issue. The terms are in the schedules and function normally despite this. This visual bug occurs in both the mobile app and the desktop version. I've also sent the quiz report.

I created a list (Assorted -> test) and added some terms that exhibit this bug, but there are many more terms affected besides the ones I took screenshots of.