Why does Lightroom create duplicates of the files I import?
So, for some reason photos in Lightroom that I've imported end up being duplicated into a folder like this.
They are full-size duplicates, JPG & RAW (.NEF).
I just did a test importing from an external, from desktop, and also backing up and it didn't happen at any of those points - so I'm not sure when exactly it does happen but as long as I've had LR - 2013, 2014, 2015 and 2016 folders and I'm definitely not creating them.
My file handling on import is "Add" and I still have a Lightroom Catalog in Pictures with all the backups and previews.
Any idea what is happening?

Thanks
