Size Tall – not working

I am trying to use the “size” option in the widget. Is there suppose to be a difference between “wide” and “tall”?

In my testing so far, both sizes display the same. Is that because I am using the “Free” version? I have “Clear all Awesome Weather Widget Cache” between tests. Other options I modify (e.g. colours and titles) are working as expected. It is only the “size” option that doesn’t seem to work.