CollectionService tagged objects not replicating across server-client boundary

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#1

I’m scripting a GUI in a local script and I have a “rainbow button” (It’s a text button) that I want to tween the background color so it changes through different colors in a table. I already have set up and tested the code to tween the rainbow colors and it works perfectly… from the server.

My issue is that when I use collection service in the local script to tag the button it isn’t replicated to the server and therefore not tweened. So far I have only used CollectionService:AddTag().

I have theorized about using a remote event to pass the object to the server to have it be tagged and tweened but I am trying to avoid this as the remote event could be exposed to exploiters and I’m trying to make my game as server-sided as possible.

Here’s an example of what I’m currently using to test whether or not the tagged instances are replicated. So far it’s shown that they aren’t, but I need confirmation on whether or not this is true or if there is another way.

Local Script:

local CollectionService = game:GetService("CollectionService")
CollectionService:AddTag(workspace:WaitForChild("SpawnLocation"),"RainbowColor")

Server Script:

local CollectionService = game:GetService("CollectionService")

local TaggedRainbowObjects = {}
local function AddObject(object)
	print('Added Rainbow object: "',object,'"')
	table.insert(TaggedRainbowObjects,object)
    print(CollectionService:GetTagged("RainbowColor")
end
local function RemoveObject(object)
	print('Removed Rainbow object: "',object,'"')
	table.remove(TaggedRainbowObjects,table.find(TaggedRainbowObjects,object))
    print(CollectionService:GetTagged("RainbowColor")
end
CollectionService:GetInstanceAddedSignal("RainbowColor"):Connect(AddObject)
CollectionService:GetInstanceRemovedSignal("RainbowColor"):Connect(RemoveObject)

Note: I didn’t include the code for the rainbow tweening because it already works. This is just the method I’m using to try and detect replicated instances.

All I really need to know is if there is either a better way to script this and if tagged objects replicate from the client to server, as I haven’t found a single sentence denoting whether or not they do.

Prevent client from changing tags
#2

Scroll down to the bold letters that say Replication. Not sure if that completely answers your question though.

Also. I don’t think that that should be much of an exploiter issue, isn’t it just a button tag?

You could also add some server checks to make sure it’s what’s supposed to be happening. Just in case.

#3

Standard replication rules apply. The client cannot propagate changes to the server, so the server will not see tags that the client adds to objects. Likewise, a client’s tags on an object will get overwritten if the server modifies the tags for said object. Remotes are required, or a change in approach.

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Prevent client from changing tags