I have the same problem as dcpei explained at https://www.mangaupdates.com/showtopic.php?tid=48518

To make things worse, when using the Android app, many series since issue 50-51 don't show (issue 1 is even empty) and I can only read chapters from the still available issues of any manga that had been published (last chapters of Man's Bestest Friend os Sentirental Girl cannot be accesed even from the "select a chapter" feature at the end of still accessible chapter).

I just want to know if they have implemented any kind of IP filter to only let people from the US and Japan get to the latest chapters or if there's some kind of problem.

It's an IP filter...
yesterday I struggled because nothing was shown on the website. after using an US proxy and the exact same links, things started to work.
why they would do this, I have no idea...

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