:FireClient(plr, stringvalue) returns "stringvalue" as nil

Help and Feedback Scripting Support
1

I want to pass a StringValue to the client from the server to only one client but when I use :FireClient() it returns the string a nil.

Server Script:

for _, SectorDetector in pairs(workspace:GetDescendants()) do
	if SectorDetector:IsA("Part") and SectorDetector.Name == "SectorDetector" and SectorDetector.Sector then
		
		SectorDetector.Touched:Connect(function(hit)
			
			if hit.Parent:FindFirstChild("Humanoid") then
				
				local plr = game.Players:GetPlayerFromCharacter(hit.Parent:FindFirstChild("Humanoid").Parent)
				if plr then
					print(plr)
					game:GetService("ReplicatedStorage").SectorNotification:FireClient(plr, tostring(SectorDetector.Sector.Value))
				end
				
			end
			
		end)
	end
end

Client Script:

game:GetService("ReplicatedStorage").SectorNotification.OnClientEvent:Connect(function(plr, sector)
	if plr then
		
		script.Parent.TextLabel.Text = "— Entering "..sector.." —"
		
		end
end)

On the Client Script, arugment called “sector” is nil even though it is passed as a string value.

2

FireClient doesn’t pass the first passed argument to OnClientEvent as that is used to determine which player will receive the OnClientEvent. So the first argument in OnClientEvent is the string you passed as the 2nd argument in FireClient. You can fix this easily:

game:GetService("ReplicatedStorage").SectorNotification.OnClientEvent:Connect(function(sector)
	script.Parent.TextLabel.Text = "— Entering "..sector.." —"
end)