I’ve seen related issues on old threads, but not a current one describing exactly this behavior.
As far as settings I read in order of oldest first and stories are to be marked as read immediately. If I select a specific feed to read then the read stories are marked as read (and stay that way) just as I would expect.
However, if I am in https://www.newsblur.com/folder/every… (ALL SITE STORIES) I see the total unread number decrement than within a second or two return to the old number. In the subject view it appears it is marked as read (no more bold) but as soon as I return to https://www.newsblur.com/folder/every… then the old stories I already read in https://www.newsblur.com/folder/every… have reverted to unread.
This happens in Firefox 19.0.2, IE 10.0.9200, and Chrome 26.0.1410. I tried all 3 “marked as read” settings with the same result.
Is it a known issue?