We had this issue several versions back. We created a separate folder for daily backups that is empty each day. Created right next to the regular archive folder. So make sure your back up is pointed to the empty folder. Once you do this it will stay pointed there.  Then once you send your backups to a stick, copy the backup files again and paste them in the regular archive file that holds all of the backup archives.  Then when finished delete the daily back ups out of the daily folder.( not the archive folder that holds them all) I actually have a short cut on my desktop that holds the daily backups that way you can check that they got deleted when finished.  It is taking a long time because it is searching through all of your archived backups.  We have heard of people waiting 40 minutes for it to quit spinning. Hope this helps.

We had this issue several versions back. We created a separate folder for daily backups that is empty each day. Created right next to the regular archive folder. So make sure your back up is pointed to the empty folder. Once you do this it will stay pointed there.  Then once you send your backups to a stick, copy the backup files again and paste them in the regular archive file that holds all of the backup archives.  Then when finished delete the daily back ups out of the daily folder.( not the archive folder that holds them all) I actually have a short cut on my desktop that holds the daily backups that way you can check that they got deleted when finished.  It is taking a long time because it is searching through all of your archived backups.  We have heard of people waiting 40 minutes for it to quit spinning. Hope this helps.