FindPartOnRayWithIgnoreList isn't working plz help?

so i made a raycast but i made it so it only detects one part every other part, it doesn't detect so how i did that is i made a for loop that loops threw all the decendance of workspace and if it is a part or a mesh part then if it is not the part that i want to detect then it gets inserted into the ignore list here it is in code

--part is the only part i don't want to ignore/insert it into the table
local list = {}
for i, partnew in pairs(workspace:GetDescendants()) do
	if partnew:IsA("Part") or partnew:IsA("MeshPart") then
		if partnew ~= part then
			table.insert(list,part)	
		end
	end
end

then the raycasting is here

local hit,Position,norm = workspace:FindPartOnRayWithIgnoreList(raycast, list)

now here is the problem, it never detects the part i want to detect i tried commenting out line 6 and it works so i think it is adding the part but when i put a print statment and look threw it, i never see it adding the part please help :/