If you long press a story that is near the top of the feed the menu is very small (it does scroll) and in turn is not very easy to use. It looks like this may have been brought up in an earlier issue but at the time it was indicated that was a beta version/problem (https://getsatisfaction.com/newsblur/topics/android-long-press-menu-appears-in-wrong-spot)
Could you use the “Send app feedback” link in the main menu and paste that information here?
This is going to be a tricky one, as those menus are, unfortunately, handled entirely by the Android system and your phone’s custom theme (if any). We’ll probably need to get our hands on your exact device.