Frame Edges Not Showing

Hi all - hoping someone can help with this. I have many documents that I have made where I add frames and insert images, as one does. However, after saving and reopening, if I want to delete a picture but keep the frame, the frame disappears. It is still selectable, but it does not appear as normal with the x in the middle. This is incredibly frustrating as I cannot see where my frames are and cannot plan my document appropriately. Frame edges are set to "show", screen mode is set to normal, all objects are set to be printing. What is even more frustrating is that when I make a new frame, it does have the x in it. Does anyone have a solution for this? Thanks!