(Solved) How do I work the new ray casting system?

I was working on a pathfinding agro zombie type NPC just to dip my fingers in pathfinding and ray casting.

-- variables used in other functions

local pathService = game:GetService("PathfindingService")
local human = script.Parent.Humanoid
local moving = nil
local RootPart = script.Parent.HumanoidRootPart
local targets = {}
-- function

function FindTarget()
	local distance = 30
	local target = nil
	for i, v in pairs(game.Workspace:GetChildren()) do
		local findHuman = v:FindFirstChild("Humanoid")
		local findRoot = v:FindFirstChild("HumanoidRootPart")
		if findHuman and findRoot and v.Name ~= script.Parent.Name then
			-- checks the workspace for anything containing a humanoid and humanoid root part
			
			if (RootPart.Position - findRoot.Position).Magnitude < distance and findHuman.Health ~= 0 then 
				-- check if distance between the root part of the character and NPC is less than the distance of 30 studs and the Health of the character is not 0
				print("Target Found")
				table.insert(targets, findRoot)
				-- raycasting stuff
				local newRayParams = RaycastParams.new()
				newRayParams.FilterDescendantsInstances = {script.Parent}
				newRayParams.FilterType = Enum.RaycastFilterType.Blacklist   
				local newRay = game.Workspace:Raycast(script.Parent.Head.Position, (findRoot.Position - RootPart.Position).Unit * distance, newRayParams)
				if newRay ~= nil then 
					hitPart = newRay.Instance
					end
				if hitPart then 
					print("ray has hit: " .. hitPart.Parent.Name)
				end
				
				
			end
		end
	end
end

What this is supposed to do is filter out the model the script is in (so the zombie NPC) and detect nearby players (within 30 studs).

** On line 29 of this post, I have an if statement to check and see if the ray has intersected something (or so I think that's how it works from the wiki) and the problem is - when I put a wall directly in front of the zombie's head, It still detects "legoguy939" which is my character, even though the ray would logically intersect the part. **