So, when I went to USA I made sure to click the "Available Offline" switch on 2 of my playlists but when one of them was finished it had a grey "offline" symbol on it instead of the regular green one. It still works offline however, first I thought that it might mean that it is broken but that is not it.
Here is a picture of how it looks:
It doesn't really bother me, but I was just curious on why it was like that 🙂
"The measure of a man is not what he owns but how he owns himself."