Google backup and sync - Photos - Masters cannot be synced
I'm trying to use Googles backup and sync to store a copy of my Photos library on google drive. If I select the Photos library it's tries to upload 100's of thousands of pictures even though I don't have that many. I found out it was due the facetiles folder which stores lots of small jpeg's for facial recognition in, plus other preview jpegs too. So I showed photo library's contents then added Masters to my favourites selected that and I get an error saying -
The folder 'Masters' can't be synced.
Please select a folder on an HFS+ or APFS drive that is not mounted over a network.
I see it has a special @ permission assign to it?
drwxr-xr-x@ 10 parismac
staff 320
3 Jun
2017 Masters
I'd like google apps to think it was a normal directory although I don't want to break Photos.