My Book Live NAS prompting to "Are you sure you want to copy this files wihtout its properties?"

Hi,

When coping files to my My Book Live drive, I keep getting this prompt:

“Are you sure you want to copy this files wihtout its properties?”

What files properties am I losing?

A

I’ve not once seen that message.

What OS are you using on your PC, and how are you doing this copy?