DataStore saves in studio, but not in servers?

My DataStore for settings is not saving properly, and I have no clue why. I've tried changing keys and DataStore names, and that doesn't seem to be doing anything. Loading works fine because I tried editing it through a plugin that lets you edit your DataStores, so I know it's not the loading part of the script. I have an AutoSave that uses the spawn() function, I don't know if that is conflicting with the player left, but I don't know.

Here my saving part of my code.

PlayerRemoving save:

--The DataStore key is using:
local DataStoreService = game:GetService("DataStoreService")
local DataStore = DataStoreService:GetDataStore("Settings")

local settings = player:WaitForChild("Settings")

local key = "User-"..player.userId -- User-(playerid) is what I am currently using, I was using player-(playerid) before.
	
local valuesToSave = {
	settings.MusicEnabled.Value, settings.MusicVolume.Value
}
DataStore:SetAsync(key, valuesToSave)
print("Stats successfuly saved!")

Autosave:

spawn(function()
	while wait(autosaveInterveal) do
		print("Now autosaving!")
		for i, player in pairs(game.Players:GetPlayers()) do

			local settings = player:WaitForChild("Settings")
		
			local key = "User-"..player.userId
			
			local valuesToSave = {
				settings.MusicEnabled.Value, settings.MusicVolume.Value
			}
			DataStore:SetAsync(key, valuesToSave)
		end
		print("Autosave complete")
	end
end)

All of the code is in the same script.

Edit: My game is FilteringEnabled.

Thanks for the help! ~Marco

I don't know where your script is but, since your game is using filtering enabled I would recommend using Remote Events/Bindable Events to do so. If you don't know how there 2 work just go to this links: (They helped me alot)

https://www.youtube.com/watch?v=jQ0iClyt_zA&t=497s

https://www.youtube.com/watch?v=C0qQ4lDa3t0&t=526s

--//I don't recomend these because they are too confusing!\\--

http://wiki.roblox.com/index.php?title=Remote_Events_and_Functions

http://wiki.roblox.com/index.php?title=API:Class/BindableEvent