:GetChildren() "#" not working as intended?

This script doesn't print success once, I don't know what the issue is? "Players Ready" is a text label, it is a local script

game.Players.PlayerAdded:Connect(function(plr)
plr:WaitForChild("PlayerGui"):WaitForChild("Game"):WaitForChild("Frame"):WaitForChild("Night"):WaitForChild("PlayersReady").Changed:Connect(function()
    local ign = game.ReplicatedStorage.InGameNames:GetChildren()

if #ign > 0 then 
    print("Success!")
    if plr:WaitForChild("PlayerGui"):WaitForChild("Game"):WaitForChild("Frame"):WaitForChild("Night"):WaitForChild("PlayersReady").Text == tostring(#ign) then
        print("Success!")
            game.ReplicatedStorage.RemoteEvents.DayNightCycle:FireServer()
        end
    end
end)
end)

@sweettart13947 I tried to make it work but it didn't work, this is my modified script with your addition, this modified script doesn't work.

game.Players.PlayerAdded:Connect(function(plr)
plr:WaitForChild("PlayerGui"):WaitForChild("Game"):WaitForChild("Frame"):WaitForChild("Night"):WaitForChild("PlayersReady").Changed:Connect(function()
	local ign = game.ReplicatedStorage.InGameNames:GetChildren()
	local function CountElement(Table)
    local Count = 0;
    for i,v in next, Table do
        Count = Count + 1
    end
    return Count
end
CountElement(game.ReplicatedStorage.InGameNames:GetChildren())
if #ign > 0 then 
	print("Success!")
	if plr:WaitForChild("PlayerGui"):WaitForChild("Game"):WaitForChild("Frame"):WaitForChild("Night"):WaitForChild("PlayersReady").Text == tostring(#ign) then
		print("Success!")
			game.ReplicatedStorage.RemoteEvents.DayNightCycle:FireServer()
		end
	end
end)
end)

@zompi

Your implementation of my script is incorrect. Due to Lua's wacky "#" syntax, sometimes it doesn't count a table properly. So I made a function to fix this.

This is a fixed version of your script:

local function CountElements(Table)
    local Count = 0;
    for i,v in next, Table do
        Count = Count + 1
    end
    return Count
end

game.Players.PlayerAdded:Connect(function(plr)
    plr:WaitForChild("PlayerGui"):WaitForChild("Game"):WaitForChild("Frame"):WaitForChild("Night"):WaitForChild("PlayersReady").Changed:Connect(function()
        local Length = CountElements(game.ReplicatedStorage.InGameNames:GetChildren())
        if Length > 0 then 
            print("Success!")
            if plr:WaitForChild("PlayerGui"):WaitForChild("Game"):WaitForChild("Frame"):WaitForChild("Night"):WaitForChild("PlayersReady").Text == tostring(#ign) then
                print("Success!")
                game.ReplicatedStorage.RemoteEvents.DayNightCycle:FireServer()
            end
        end
    end)
end)

If this doesn't work then it is something with your game.