Bug solo session all player

Good evening,
I have a problem when I move away from a player it places me and the player in a solo session and when we get closer we are no longer as if there was a range between each player.
From the new fivem artifact


Fix the resource that you’re using to list players. Player virtualization was added like two years ago, how are there still people using resources that don’t do this server-side?

ok, thanks but you can explain to me how it will be because I have just taken fivem after 1 year and I will not lie to you that I forgot Thank you very much