When moving between lists, the scroll position is generally lost. This applies to ALL lists/screens where scrolling is possible (course list, words list, etc.).
For instance, go into a lengthy chapter of some course, scroll down, then select a word, then return back to the list - you’ll find yourself at the top of the list again. This is particularly annoying if you work your way through long lists in order to ignore a bunch of words.
See also this thread.