Hello,
I have been having problems with reading epub books with digital additions for sometime and decided to write about it here. two major issues are:
  sometimes with NVDA and everytime with a braille display at the beginning of a new page I skip the first lines instead my Braille display or nvda repeats the last line of the last page. I need to get one line up and down to solve the problem with my keyboard and it is espetially annoying with braille display when I need to swich between my keyboard and display. I guess the problem is about focus lost. Is there anything I can do to prevent this problem?
Also I need to use my braille display in review mode otherwise it stucks on one line. This is not a big problem for me but I would love to know why is it the case.