Curious about eraser tool differences in Camera and Drawing mode

Just wondering why the path is visible as a gray line while making strokes with the eraser tool in Camera mode but the same is not so in Drawing mode or visa versa. I do not know of other software, either drawing or photo editing like PS, where the path is displayed in a gray line until you lift the cursor. And why would this be implemented differently between the two modes in Harmony?

As far as I know, it’s the same in both views.
Make sure there is something behind your layer you’re erasing from.
Without any background you won’t see any eraser line.