I don't think this actually updates the post's read status to Lemmy, so might just be a little UI bug.
Getting the same thing. Clicking on the thumbnail marks the post read. Clicking on the post to open the comments marks it as unread.
A community for the mobile app Connect for Lemmy.
Google Play
APK Pure
Getting the same thing. Clicking on the thumbnail marks the post read. Clicking on the post to open the comments marks it as unread.