IntValue doesn't add/subtract properly

Help and Feedback Scripting Support
,
#1

Hello! I have this issue with my script where the IntValue won’t subtract or add up properly. It skips a few numbers. It goes from 1 to 2 to 4 to 6 and vice versa. Here is the script:

local Camera = game.Workspace.CurrentCamera
local ShelfFrame = script.Parent.ShelfFrame
local GameName = ShelfFrame.GameName
local GameDescription = ShelfFrame.GameDescription
local Cartridges = workspace.Room.Cartridges:GetChildren()

local TweenService = game:GetService("TweenService")
local ContextActionService = game:GetService("ContextActionService")

Camera.CameraType = Enum.CameraType.Scriptable
Camera.CFrame = workspace.Room.Cartridges["Tom&Dan"].CameraPart.CFrame

local CurrentCartridge = workspace.Room.Cartridges["Tom&Dan"]
local CurrentOrderValue = 1
local Cooldown = 0.1
local CanScroll = true

local function MoveCamera(StartPart, EndPart, Duration, EasingStyle, EasingDirection)
	Camera.CameraType = Enum.CameraType.Scriptable
	Camera.CFrame = StartPart.CFrame
	local Cutscene = TweenService:Create(Camera, TweenInfo.new(Duration, EasingStyle, EasingDirection), {CFrame = EndPart.CFrame}):Play()
end

local function ScrollRight(inputName, inputState, input)
	if inputState == Enum.UserInputState.Begin and CanScroll == true then
		CanScroll = false
		for _, cartridge in pairs(workspace.Room.Cartridges:GetChildren()) do
			if cartridge and cartridge.OrderValue.Value == CurrentOrderValue + 1 then
				MoveCamera(Camera, cartridge.CameraPart, 0.1, Enum.EasingStyle.Back, Enum.EasingDirection.Out)
				CurrentCartridge = cartridge
				CurrentOrderValue = cartridge.OrderValue.Value
				GameName.Text = cartridge.GameName.Value
				GameDescription.Text = cartridge.GameDescription.Value
			end
		end
		wait(Cooldown)
		CanScroll = true
	end
end

local function ScrollLeft(inputName, inputState, input)
	if inputState == Enum.UserInputState.Begin and CanScroll == true then
		CanScroll = false
		for _, cartridge in pairs(workspace.Room.Cartridges:GetChildren()) do
			if cartridge and cartridge.OrderValue.Value == CurrentOrderValue - 1 then
				MoveCamera(Camera, cartridge.CameraPart, 0.1, Enum.EasingStyle.Back, Enum.EasingDirection.Out)
				CurrentCartridge = cartridge
				CurrentOrderValue = cartridge.OrderValue.Value
				GameName.Text = cartridge.GameName.Value
				GameDescription.Text = cartridge.GameDescription.Value
			end
		end
		wait(Cooldown)
		CanScroll = true
	end
end

ContextActionService:BindAction("Right", ScrollRight, true, Enum.KeyCode.D, Enum.KeyCode.DPadRight)
ContextActionService:SetTitle("Right", "Next")
ContextActionService:SetPosition("Right", UDim2.new(0, 0, 0, 0))

ContextActionService:BindAction("Left", ScrollLeft, true, Enum.KeyCode.A, Enum.KeyCode.DPadLeft)
ContextActionService:SetTitle("Left", "Previous")
ContextActionService:SetPosition("Left", UDim2.new(0, 0, 0, 0))

Here is an image of the Room folder
showcase

Here is a video of how it looks like:

I really don’t know what to do, I’ve been trying to fix this for a few hours now and nothing.