I uploaded a file. Selected "Me Only". It is not visible on my site in the timeline or listed in resources. However, members received an email notification that I had uploaded the file. They clicked on that link, and were able to see the file.
Couldn't reproduce from my side on UNA 10 B2. Please specify 2 things: 1) version of your UNA; 2) members who received the notification - are they friends of the owner of this "me only" file (but this part hasn't been confirmed from my side too)?