Collectionservice script is not working as it was inteded to be working?

local player = game.Players.LocalPlayer
local UIS = game:GetService("UserInputService")
local collectionservice = game:GetService("CollectionService")


for _,Part in pairs(collectionservice:GetTagged("Items")) do
	spawn(function()
		while true do
			wait(.2)
			if (player.Character.HumanoidRootPart.Position - Part.Position).magnitude < 10 then
				print("yes")
			else
				print("no")
			end
		end
	end)
end

It prints "no" and "yes" at the same time.

I know the problem is that some parts are not inside the proximity while others are. How would I fix it so you only need to be close to one part?