I'm losing data between the server-side script and the client-side script

[Ryxku]

Hello I’m working on a game where I manage houses spawned by users.
Each Neighborhood is a different place to set houses.
Each neighborhood can have between 4 and 9 houses.
Sometimes when some neighborhood are not full of users because they havent been claimed yet, there’s a model called Empty spawning to a future player can come and spawn a house to get it registered in the data store.

So in my server script I use a RemoteEvent to talk to my local script, and when I print both what they send, they don’t show the same result…

In server script :

local function sendHousesInfo(player, x, y)

	local houses = getNeighborhoodHouses(x, y)
	if houses then
		local houseCount = countHouses(houses)
		print("HouseManager - I'm sending", houseCount, " - the name of the house model", player.Name)

		for houseNumber, houseInfo in pairs(houses) do
			print("HouseManager - Sending house:", houseNumber, "Type:", houseInfo.houseType, "Owner:", houseInfo.ownerName)
		end

		UpdateNeighborhoodHouses:FireClient(player, {
			quarterPosition = {
				X = x,
				Y = y
			},
			houses = houses
		})
	end
end

Sorry for the french, yes I like printing in french.
Anyway as you can see, it shows what the server script is gonna send to the client. Houses have a number ID thanks to attributes.

Here the local script receiving :

ReplicatedStorage.UpdateNeighborhoodHouses.OnClientEvent:Connect(function(data)
	print("=== Datas received for the neighborhood ===")
	print("Neighborhood:", data.quarterPosition.X, data.quarterPosition.Y)

	-- Debug: let's see the houses we just received now.
	for houseNumber, houseInfo in pairs(data.houses) do
		print("House received:", houseNumber, "Type:", houseInfo.houseType, "Owner:", houseInfo.ownerName)
	end

	local neighborhood = waitForNeighborhood(
		data.quarterPosition.X,
		data.quarterPosition.Y
	)

So we received in total 2 houses (Rip the 7 one)

And the local script will start working with the “Zwei” one.

Later in the prints, it’ll talk about :

But after that, it does other thing and never mentions the 7th House.

UNTIL A WEIRD THING HAPPENS :

I dont have screenshots for now, but believe me, adding the 5th house helped the 7th to be received in local script. 5th appeared too since I made it in the data store.
But without the 5th, the 7th doesn’t come.
If I add the 6th, the 7th doesn’t come too.
So it’s very very weird.

[SOTR654]

What happens inside getNeighborhoodHouses? I would suspect that if they are instances, perhaps those instances do not exist on the server or the client.

And remember not to use UnreliableRemoteEvent for this

Wow, devforum notifications are fast, 6 hours for it to appear in my notifications

[Ryxku]

So this is a remoteevent, what do you mean by UnreliableRemoteEvent ?

local function getNeighborhoodHouses(x, y)
	print("HouseManager - Let's have a look for existing houses", x, y)

	-- Récupération directe des données sans pcall
	local neighborhoodData = neighborhoodDataStore:GetAsync("Neighborhood_" .. x .. "_" .. y)

	if neighborhoodData then
		print("Données brutes du quartier:", neighborhoodData)

		local houses = {}
		for houseNumber = 1, 9 do
			local houseKey = "HouseNumber" .. houseNumber
			local houseData = neighborhoodData[houseKey]

			if houseData then
				print("House found:", houseKey, "Type:", houseData.houseType)
				-- Récupérer le nom du joueur associé à l'ID propriétaire
				local username = Players:GetNameFromUserIdAsync(houseData.owner)

				houses[houseNumber] = {
					owner = houseData.owner,
					ownerName = username,
					houseType = houseData.houseType,
					claimDate = houseData.claimDate,
					Texte = houseData.Texte or "Write something here"
				}
			else 
				warn("There's no house in the Neighborhood ID", houseKey)
			end 
		end

		return houses
	else
		print("No data found for this neighborhood", x, y)
	end

	return nil
end