Show Context Menu for Selected Item


When I try to use 'Show Context Menu for Selected Item', if I then try to use 'Trigger Context Menu Item', it looks at a context menu where the mouse is, not the selected item, so even though I can open the context menu for a selected item, there is no way to actually interact with it, which seems like the point of 'Showing a context menu on a selected item'? Am I missing something or doing something wrong?