Files from folder open as "Unnamed Design"

Hi, I exported a sketch and saved it to a folder by the name “Mac Plates” on my MacBook.

If I exit Shapr and then go to the folder and open the file using “File → Open With” and then use Shapr to open the file, it launches the Shapr app, shows a message saying “Loading Mac Plates” but once the file is open it shows it as “Unnamed Design”. Why does it not pick up the name of the saved / exported file?