How do I weld 2 players together without any physics issues?

Hey, I'm back after a month or so. I have a ragdoll system (echoreaper's system) and I want to weld a player to another player. I did try to do this but I just can't get it right. I'm not sure if this is something with the ragdoll system or the network ownership.

function ChangeNetworkOwnership(char, networkOwner)
    assert(char ~= nil, "A character must be passed!")
    assert(networkOwner ~= nil, "Network owner must be passed!")
    if typeof(networkOwner) == "string" then
        if networkOwner == "Server" then
            char.HumanoidRootPart:SetNetworkOwner(nil)
            char.UpperTorso:SetNetworkOwner(nil)
        end
    else
        char.HumanoidRootPart:SetNetworkOwner(networkOwner)
        char.UpperTorso:SetNetworkOwner(networkOwner)
    end
end

function ToggleWeld(carryChar, carryPlayer, toggled)
    if toggled then
        for _, v in pairs(carryPlayer.Character:GetChildren()) do
            if v:IsA("BasePart") then
                physics:SetPartCollisionGroup(v, "NonCollidable")
            end
        end
        local folder = NewInstance {"Folder", carryChar, Name = "RagdollWeld"}
        for _, v in pairs(carryChar:GetChildren()) do
            if v:IsA("BasePart") then
                v.Massless = true
                physics:SetPartCollisionGroup(v, "NonCollidable")
                v.Massless = true
                v.CanCollide = false
                NewInstance {
                    "Weld",
                    folder,
                    C0 = carryChar.HumanoidRootPart.CFrame:toObjectSpace(v.CFrame),
                    Part0 = carryChar.HumanoidRootPart,
                    Part1 = v,
                    Name = v.Name
                }
            end
        end
        return folder
    else
        if carryChar:FindFirstChild("RagdollWeld") then
            for _, v in pairs(carryChar:GetChildren()) do
                if v:IsA("BasePart") then
                    physics:SetPartCollisionGroup(v, "Players")
                    v.Massless = false
                end
            end
            for _, v in pairs(carryPlayer.Character:GetChildren()) do
                if v:IsA("BasePart") then
                    physics:SetPartCollisionGroup(v, "Players")
                    v.Massless = false
                end
            end
            local ragdollWelds = carryChar:WaitForChild("RagdollWeld")
            ragdollWelds:Destroy()
        end
    end
end

I am calling these functions with the correct arguments.

ChangeNetworkOwnership(CarryChar, player)