Remote event invocation queue exhausted

What the message means

Remote event invocation queue exhausted for ReplicatedStorage.Remotes.Click; did you forget to implement OnServerEvent? (1 events dropped)

Other forms of the same message:

• Remote event invocation queue exhausted for ReplicatedStorage.Notify; did you forget to implement OnClientEvent? (1 events dropped)

A short wait is normal: a LocalScript may fire before the server Script has connected. The queue covers that. This warning means the wait went on for a long time, or never ended.

The path in the message is the full name of the RemoteEvent, which tells you exactly which one to look for. Remotes from a plugin or a removed admin system can cause it too.

Causes and fixes

Three things cause this warning in practice. Each one below has the smallest code that triggers it, then the fix.

• Nobody connected the handler
• The script that would connect it stops first
• The server fires to clients that never listen

Nobody connected the handler

The LocalScript fires, but no server Script connects OnServerEvent for that RemoteEvent: it was never written, it is in a disabled Script, or the Script is somewhere scripts do not run (such as ReplicatedStorage).

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local UserInputService = game:GetService("UserInputService")

local click = ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("Click")

-- fires on every click, but no server Script listens
UserInputService.InputBegan:Connect(function(input)
	if input.UserInputType == Enum.UserInputType.MouseButton1 then
		click:FireServer()
	end
end)

Add the handler in a Script in ServerScriptService.

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local click = ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("Click") :: RemoteEvent

click.OnServerEvent:Connect(function(player: Player)
	print(player.Name, "clicked")
end)

The script that would connect it stops first

If the server Script errors or waits forever above the Connect line, the handler is never connected. Look for a red error or an Infinite yield warning from that script.

local ReplicatedStorage = game:GetService("ReplicatedStorage")

-- waits forever: there is no "Config" folder, so the line below never runs
local config = ReplicatedStorage:WaitForChild("Config")

local click = ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("Click")
click.OnServerEvent:Connect(function(player)
	print(player.Name, config)
end)

Connect remote handlers at the top of the script, before anything slow or risky, and give waits a time-out.

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local click = ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("Click") :: RemoteEvent
click.OnServerEvent:Connect(function(player: Player)
	print(player.Name, "clicked")
end)

local config = ReplicatedStorage:WaitForChild("Config", 5)
if config == nil then
	warn("[Clicks] no Config folder; using defaults")
end

The server fires to clients that never listen

The same happens the other way: did you forget to implement OnClientEvent? means the server fires to a client where no LocalScript has connected OnClientEvent, for example because the LocalScript is in ServerScriptService (where LocalScripts do not run).

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local notify = ReplicatedStorage:WaitForChild("Notify")

-- every second, to everyone; no LocalScript listens
while true do
	notify:FireAllClients("Tick")
	task.wait(1)
end

Add a LocalScript in StarterPlayerScripts (or StarterGui) that connects OnClientEvent.

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local notify = ReplicatedStorage:WaitForChild("Notify") :: RemoteEvent

notify.OnClientEvent:Connect(function(text: string)
	print("server says:", text)
end)

How to find the line that causes it

1. The message names the RemoteEvent by its full path, such as ReplicatedStorage.Remotes.Click. Find it in the Explorer.
2. Search all scripts (Ctrl+Shift+F) for its name. You should find a FireServer in a LocalScript and an OnServerEvent in a server Script. The one that is missing, disabled or never reached is the problem.
3. If you find no script that fires it, a plugin or a free model may be firing it. Remove leftovers you no longer use.

Questions

Sources and further reading

• Roblox Creator Docs: remote events and callbacks
• Roblox DevForum: Remote event invocation queue exhausted for RemoteEvent; did you forget to implement OnServerEvent?
• Roblox DevForum: Remote event invocation queue exhausted for remote event (events dropped)

How the code was checked: every block marked Fixed passes Luau's strict type checker against Roblox's API definitions (luau-lsp, 23 October 2026), and every block marked Breaks compiles and fails only when it runs. The message wording was checked against the message format string in Roblox Studio itself (macOS build of 13 October 2026) on 23 October 2026. A type check catches misspelt APIs and wrong types, not game logic, so playtest in Studio before you publish.