This script works completely fine and it may be the scrollingframe itself but when the buttons are parented to the scrolling frame which has the “UIList” the buttons overlap each other and aren’t in a list format. (This script is a chat autofill script)

Example: https://streamable.com/03dhtp (Copy link and paste)

Script:

local Chat = game.Players.LocalPlayer.PlayerGui:WaitForChild("Chat")
local ChatBar = Chat.Frame.ChatBarParentFrame.Frame.BoxFrame.Frame.ChatBar


local presetStrings = {
	"Poena Doloris",
	"Phasmatos Immortalis",
	"Post Tenebras Spero Lucem",
	"Incendia",
	"Ossox",
	"Delfan Eoten Cor"
}


local chatBox = ChatBar


local autoFillCollectionButtons = script.Parent.Frame.ChatBarParentFrame.Buttons
local autoFillCollectionFrame = script.Parent.Frame
local listLayout = Instance.new("UIListLayout")
listLayout.Parent = autoFillCollectionButtons
listLayout.SortOrder = Enum.SortOrder.LayoutOrder
listLayout.Padding = UDim.new(0, 5)
listLayout.FillDirection = Enum.FillDirection.Horizontal
listLayout.VerticalAlignment = Enum.VerticalAlignment.Top
listLayout.HorizontalAlignment = Enum.HorizontalAlignment.Left

function refreshAutofillSuggestions()
	local input = ChatBar.Text
	if input == "" or input == presetStrings then 
		autoFillCollectionFrame.Visible = false 
		return 
	end

	autoFillCollectionButtons:ClearAllChildren()
	for _, presetString in ipairs(presetStrings) do
		if input:sub(1,1):lower() == presetString:sub(1,1):lower() then
			autoFillCollectionFrame.Visible = true
			
			local button = Instance.new("TextButton")
			button.BorderSizePixel = 0
			button.Text = presetString
			button.TextColor3 = Color3.fromRGB(255, 255, 255)
			button.BackgroundTransparency = 0.6
			button.Parent = autoFillCollectionButtons
			button.AutomaticSize = Enum.AutomaticSize.XY
			button.Size = UDim2.new(0, 128,0, 26)
			button.Font = Enum.Font.GothamBold
			button.TextSize = 16
			print(button.Text)

			button.MouseButton1Click:Connect(function()
				chatBox.Text = presetString		
				autoFillCollectionFrame.Visible = false
				
			
	
				end)
			end
	end
end

chatBox:GetPropertyChangedSignal("Text"):Connect(refreshAutofillSuggestions)
AnonymousEdited