When you join to a player you can get Non Udmux IP Address of server, there’s how i know this; they’re want’s open your joins and i was see lots of bot account for this
Expected behavior
As when you joined a game it returns a udmux protected ip, it also should return same udmux ip for joined players
Small Roleplay Game Developers creating one player servers for fix this and redirecting to main place for block joinings, but i think it should be fixed from roblox directly