Players can see the entire gm library

Hello, I'm facing a problem, where I add maps in my adventure, through the art library and the players are able to see them there, maps that I would like to keep hidden until the moment they go to play. Is there any config to not display these images brought to the art library? or even, some way to hide the images? I saw in some posts here, saying that the art library is only for the GM, but my players can see it

Ordinarily your art library can only be seen by you, so I'm not sure what is going on here. Are you running any Roll20 browser extensions that mght make these visible? Are they logging on with your account?

I don't use any extension, and the players are normally logging into their account, but they have a visual of the entire lib

Perhaps this is a terminology issue, could you screenshot what you are calling the entire library? 

Felipe, I just looked at a game in which I am a player with no GM permissions: I can see my own art library, but not the GM's, which is as it should be.