4K Stogram - Fix out of synch condition

On certain accounts, 4K Stogram gets out of synch with the online account. This results in the program endlessly trying to download pictures/videos from that account. As a result, the program never reaches synch complete status.

It would be great if you could add some sort of "resynch" option that would allow 4K Stogram to re-check the account data and determine that it has, indeed, downloaded all of the available pix & videos.