October 6 2015
Apple Photos has changed the way it supports Drag and Drop. Since the photos are not always on your Mac but may be in the iCloud, Apple Photos will instead give a URL "promise" to photos you drag to other apps.
The next version of DoubleTake will handle such "promises" and it should work as well as with iPhoto and Aperture or other apps which does drag and drop of photos
I have also made hundreds of changes to memory management to improve performance, so please let me know about bugs! support@echoone.com
Kind regards,
Henrik Dalgaard