"Mark stories as read after" not working

problem
1

I have the “Days of unreads” option marked as “Mark stories as read after“ 1 day.

However, I have multiple feeds older than 1 day that have stories marked as unread.

I thought the problem was only with newsletters I redirect to Newsblur, but it also happens with feeds added directly through Newsblur.

NewsBlur can get article dates wrong in JSON feeds
2

Are you a premium archive subscriber? You’ll need to be in order to set how many days back stories are marked unread. If so, post a screenshot of what you’re changing.

3

There are three possibilities I think of where you’re looking, which is why I want a screenshot.