Unsure if i had done it correctly, but as you can see:
Defined “model” is equal to the targets character.
I grab the descendants & check for basepart, then setPartCollisionGroup
I have NO PRIOR information where it sets part collison other than these 2 functions so that might be an issue but I have no clue.
Can you put a print in the loop and print v.
It could possibly be something to do with the rope?
I think I may have discovered what has been happening. I’ve tested and seen that accessories weren’t detected therefore they are collidable.
Went back to look because I still had it running and turns out I cut off the image too early because I thought it was something else.
Oh well it made the part uncollidable for only my character so i’m not sure what has happened for you.
To make it easier for you, here is the entire code as a lot of it is cut out in the pictures I send, you might see something with the entire code.
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Lighting = game:GetService("Lighting")
local groupinfo = require(ReplicatedStorage.GameInfoStorage.GroupInformation)
local PhysService = game:GetService("PhysicsService")
local PlayerGroup = PhysService:CreateCollisionGroup("p")
PhysService:CollisionGroupSetCollidable("p","p",false)
local PlayerGroup = PhysService:CreateCollisionGroup("a")
PhysService:CollisionGroupSetCollidable("a","a",true)
ReplicatedStorage.RemoteEvents.Ragdoll.OnServerEvent:Connect(function(plr,state)
plr.Character:WaitForChild("Ragdoll").Activate.Value = state
end)
function NoCollide(model,ownerchar)
print("GotExecuted (nocollide)")
for k,v in pairs(model:GetDescendants()) do
if v:IsA"BasePart" then
print(v)
PhysService:SetPartCollisionGroup(v,"p")
if not model == ownerchar.Character then
v:SetNetworkOwnership(ownerchar)
end
end
end
end
function Collide(model)
print("GotExecuted (collide)")
for k,v in pairs(model:GetDescendants()) do
if v:IsA"BasePart" then
PhysService:SetPartCollisionGroup(v,"a")
v:SetNetworkOwnership(nil)
end
end
end
ReplicatedStorage.RemoteEvents.Carry.OnServerEvent:Connect(function(plr,state,targetCharacter)
if targetCharacter ~= nil and game.Players:FindFirstChild(targetCharacter.Name) and plr.Character ~= targetCharacter then
if game.Players:FindFirstChild(targetCharacter.Name):WaitForChild("PlayerInfo").Roped.Value == true and targetCharacter:WaitForChild("Ragdoll").Activate.Value == true then -- already roped, remove.
game.Players:FindFirstChild(targetCharacter.Name):WaitForChild("PlayerInfo").Roped.Value = false
if targetCharacter.HumanoidRootPart:FindFirstChild("Restraints") then
targetCharacter.HumanoidRootPart:FindFirstChild("Restraints"):Destroy()
end
Collide(targetCharacter)
Collide(plr.Character)
else
if not targetCharacter.HumanoidRootPart:FindFirstChild("Restraints") and targetCharacter:WaitForChild("Ragdoll").Activate.Value == true then
game.Players:FindFirstChild(targetCharacter.Name):WaitForChild("PlayerInfo").Roped.Value = true
local Restraints = Instance.new("Folder",targetCharacter.HumanoidRootPart)
Restraints.Name = "Restraints"
local BallSocket = Instance.new("RopeConstraint")
BallSocket.Parent = Restraints
BallSocket.Attachment1 = plr.Character.LeftHand.LeftGripAttachment
BallSocket.Attachment0 = targetCharacter.HumanoidRootPart.RootRigAttachment
BallSocket.Length = 0.03
BallSocket.Visible = false
plr.Character.Humanoid:ChangeState(Enum.HumanoidStateType.Flying)
targetCharacter.Humanoid:ChangeState(Enum.HumanoidStateType.FallingDown)
NoCollide(targetCharacter,plr)
NoCollide(plr.Character,plr)
end
end
end
end)
game.Players.PlayerAdded:Connect(function(plr)
plr.CharacterAdded:Connect(function(character)
character.Ragdoll.Activate.Changed:Connect(function()
print("oop")
if plr.Character:WaitForChild("Ragdoll").Activate ~= true then
if plr.Character.HumanoidRootPart:FindFirstChild("Restraints") then
plr.Character.HumanoidRootPart:FindFirstChild("Restraints"):Destroy()
plr:WaitForChild("PlayerInfo").Roped.Value = false
end
end
end)
character:WaitForChild("Humanoid").Died:Connect(function()
if plr.Character:FindFirstChild("Head") then
if plr.Character.HumanoidRootPart:FindFirstChild("Restraints") then
plr.Character.HumanoidRootPart:FindFirstChild("Restraints"):Destroy()
plr:WaitForChild("PlayerInfo").Roped.Value = false
end
end
end)
end)
end)Don’t make the groups variables. Just use do PhysService:CreateCollisionGroup(“p”) alone.
I changed it and it didn’t help with the issue and still works the same 
Oh wait you aren’t setting the ownerchar’s collision group? Both chars need to be in the collision group for it to work.
It runs for both the player & the ragdolled character.
Oh I get it. If the ownership for both chars are equal to one player then it will cause the physicsservice to not work. (I tested this myself)
Are we talking about Networkship at the moment? I don’t quite understand 
How would I resolve this issue?
Set the network owner of the carried person to the server or their player.
After making it to the server, it continues to do the bug.
Could it possibly be something to do with the actual rope? Possibly a roblox bug maybe?
It’s not a bug however I don’t know why it isn’t working for you in this scenario.
I think i’ll attempt to do another system, but I must thank you for your help.
Terrain is in the ‘Default’ collision group.
I’ve never heard of collision groups, how do I go about fixing this issue then? What should I change specifically?