In recent weeks I've noticed inconsistent Read/Unread behaviour with the Nextcloud Newsreader (Web) and the Android client (Nextcloud News 0.9.9.25). News items marked as Read during one session will appear as Unread next time. Newsfeeds sometimes return hundreds of "new" articles that can go back several years, even though all have previously been read.
I cannot find any consistency in this behaviour. If articles from a feed are marked as Read up to today (say), then a subset of those same articles may or may not appear as Unread tomorrow. I affects different feeds at different times and to different degrees. Very puzzling.
I wondered if it was caused by my changing Android client from OCReader to Nextcloud News because this behaviour started around the same time. However, I notice the same behaviour when using the Nextcloud Web app, so this makes me wonder if it is a server rather than client setting.
It's more of an annoyance than a major problem, but can you offer a solution?