The App on Android has been really buggy for me ever since some recent changes
It used to be that when reading I could just scroll downwards which was nice, never came with problems, and was just generally much preferred,
but ever since it changed back to swiping sideways again to change pages, the amount of text per page has been inconsistent and changes when I tap to bring up the progress bar/borders or to make them disappear again. Sometimes when I do this because I need to check the time or a phone notification it'll lurch the text around a few paragraphs or sometimes a few pages and I have to scroll around to find my place again.
Also, annoyingly and inexplicably some entire sections of pages are now completely grayed out and unreadable. I'm assuming these are either pages with illustrations/diagrams or maybe sections with text in some special format that the app is hanging up on for some reason because for example when I read latest Hell Mode chapters just now it came right after a part that says
"Schedule before the Change: "
but then nothing about the mentioned schedule information. All just unchanging grey page, and then it picks up the text again after that at some following paragraph.