Welding a dead player to an alive player kills them

Help and Feedback Scripting Support
#1

Hi. I am currently working on a carry system which allows alive players to carry dead players. I discovered a glitch where the carrier dies when picking up the dead player. However, after testing this in a local server of 2 people, it seems to only effect 1 player?

Test results from 2 player local server:

Weld killing the player


Weld not killing the other player

Function

local function weldPlayers(origin,carry)
	local ro,rc=origin.Character,carry.Character
	carry.Character.Humanoid.PlatformStand=true
	
	local Weld = Instance.new('WeldConstraint', ro)
	Weld.Name = 'CarryWeld'
	Weld.Part0 = rc.Torso
	Weld.Part1 = ro.Torso
	--Weld.C0 = CFrame.new(0,0,-1)

	for _,v in pairs(carry.Character:GetChildren()) do
		if v:IsA("BasePart") then
			PS:SetPartCollisionGroup(v,"nocol")
			v.Massless=true
		end
	end
	for _,v in pairs(origin.Character:GetChildren()) do
		if v:IsA("BasePart") then
			PS:SetPartCollisionGroup(v,"nocol")
		end
	end
end

FULL SCRIPT (excuse unefficient scripting)

game.ReplicatedStorage.Events.Remotes.Carry.OnServerEvent:Connect(function(p)
	local char = p.Character
	
		local raycastParams = RaycastParams.new()
		raycastParams.FilterDescendantsInstances = char:GetDescendants()
		raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
	local raycastResult = workspace:Raycast(char.HumanoidRootPart.Position, Vector3.new(0, -4, 0), raycastParams)
	
	if raycastResult and raycastResult.Instance.Parent:FindFirstChildOfClass("Humanoid") and raycastResult.Instance.Parent:FindFirstChild("CombatStates").KnockedState.Value then -- detect if player is infact knocked/dead
		print(raycastResult.Instance.Parent)
		for i,v in pairs(raycastResult.Instance.Parent:GetDescendants()) do --unragdoll dead player
			if v:IsA("BallSocketConstraint") then
				v.UpperAngle = 0
				v.TwistUpperAngle = 0
				v.TwistLowerAngle = 0
				local Joints = Instance.new("Motor6D",v.Parent)
				Joints.Part0 = v.Attachment0.Parent
				Joints.Part1 = v.Attachment1.Parent
				Joints.C0 = v.Attachment0.CFrame
				Joints.C1 = v.Attachment1.CFrame
				v:Destroy()
			end
		end
		raycastResult.Instance.Parent.Humanoid.Sit = false
		
		raycastResult.Instance.Parent.HumanoidRootPart.Position = char.HumanoidRootPart.Position
		raycastResult.Instance.Parent.Humanoid.Animator:LoadAnimation(carryAnimInstance):Play()
		
		weldPlayers(p, game.Players:GetPlayerFromCharacter(raycastResult.Instance.Parent)) -- weld dead player to p.Character
	end
end)
#2

Try using physics instead, humanoids generally use break joints on death which causes the dying issue:

Why does my tool keep killing me?