Missing episodes in iOS app
In the series "Tonari no Seki-kun" https://simkl.com/anime/44616/tonari-no-seki-kun/episodes/ the last 4 episodes (Episodes 1, 2, 3 and 4) are missing in the app, it arrives at 21 and then it doesn't show anything else. Also, Episodes 3 and 4 are specials from the series, while 1 and 2 do not exist.
There are other series missing special episodes in app while they are in the site like in here https://simkl.com/anime/38496/afro-samurai/episodes/
You can find separate Specials category in the App where these are located https://monosnap.com/file/P6PUjQuiQ8QeTUp8Dk7GyU9bTw44sr
On the mobile website Specials section is also available. On the desktop you can mark these in the Summary tab, Specials category.