Timehop did not download any improperly permissioned photos from the 12 day period from September 13 to 25, 2018 when Facebook had improperly granted Timehop permission to access some photos it should not have had permission to access.
Timehop only downloads the photos it needs now to work, and we don’t keep them. The week of September 13, 2018, we would only have been accessing photos from one year earlier or more - September 6 to September 18, 2017 at the latest.
Timehop would not and will not attempt to download any photos from September 13-25, 2018 until next September, 2019.
Since Facebook has already fixed this bug, no unauthorized photos will be accessed next year.
Furthermore, in all cases we only keep photos for five days, and all photos from September 2018 have been deleted from the Timehop servers by now.