I am noticing the last 2 new issues of Catwoman, Justice League and Nightwing as well as Batman and Superman are out of order in the series page when they get added. Because of this they do not appear in my dive back in section (which is missing at the moment in my iPad and iPhone) when added to the service. Also when I finish reading the latest issue from those series it wants me to read an older issue next because it is out of order. So to clear the old issue from my dive back in section I need to go to whatever issue the series page has listed last and open that issue and scan to the end or mark it read to remove it from dive back in.
For example, Nightwing 79 came out today but in the series page they have it listed before issue 64. After I read 79 I had to open 77 which is listed last and flip through to the end to remove the old issues I already read out of my dive back in.