Collision group affects every player in game

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This image shows that I tried making my player not collide with the map but when it is activated it applies to every player in the server, is there a way to correct this, if so, any help is appreciated!

I haven’t a clue if this is right, but the following may fix this.

What I believe is that collissiongroup is still classing “Guest” as part of the group. Perhaps try using:

plr:IsInGroup(group1)
plr:IsInGroup(group2)

If you use them in simple oneliners such as if plr:IsInGroup(group1) then return end, it should rectify the issue.

As I said, the first part may not be accurate however this would be a suitable solution.

so how would I use this specifically, like is there no way to only let the player’s character in a collision group, remember what happened is that it placed all players characters in the group even though I specifically told it to place mine only, if I say something like if plr:IsInGroup(group1) then yes I want it to be in group one but how do I prevent other players from going in that group.

plr:IsInGroup Thats for Roblox groups not CollisionGroups.

Nevermind, I just needed to set the parts collision group from the client. You have to make the collision group and set its relation in the server though.