I haven’t seen a post on this issue but I might be wrong.

In my recently read books, when I switch from “latest read” to “earliest read”, I often get a bug (twice today, plus on several other days before). It doesn't sort the books as I want and the menu disappears and reappears incompletely on the left of the app (a bit is out of screen). I have to select “latest read” to get the menu back in its place and readable again and try again to select “earliest read”. Then either it works the second time around, or the “recently read” list just never reappears and it shows an eternally loading circle. Hope this helps!