Raycast or MoveTo is randomly glitching out after working fine for a period?

I made a script that makes a humanoid wander around randomly. At first, it would constantly run into walls, so I made a Ray that moves the humanoid to the center of the walled in area when it touches a wall. It works as intended, except for when it will randomly spin around in circles after hitting the wall instead of heading to the intended part. Usually, the script cannot break out of this, as the ray will just hit the wall again and cause it to spin once more. This doesn't happen every time it hits a wall, only after the first few times or later (It's pretty random). Here's the code:

local wanderAngle
local wanderConeSize = 6
local maxWanderAngle = 0.75
local Hit = nil

function getWanderTarget()
math.random(tick())
wanderAngle = (math.random() - 0.5) * maxWanderAngle
local rotatedLookVector = CFrame.Angles(0, wanderAngle, 0) * script.Parent.Torso.CFrame.lookVector
return (script.Parent.Torso.Position + wanderConeSize * rotatedLookVector)
end

while Hit == nil do

local orient = script.Parent.Torso.CFrame.LookVector * 8
local ray = Ray.new(script.Parent.Torso.Position, orient )
local Part, Position = game.Workspace:FindPartOnRay(ray, script.Parent)

--[[ local beam = Instance.new("Part", workspace)
beam.BrickColor = BrickColor.new("Bright red")
beam.FormFactor = "Custom"
beam.Material = "Neon"
beam.Transparency = 0.25
beam.Anchored = true
beam.Locked = true
beam.CanCollide = false
local distance = (script.Parent.Torso.CFrame.p - Position).magnitude
beam.Size = Vector3.new(0.3, 0.3, distance)
--beam.CFrame = CFrame.new(script.Parent.Torso.CFrame.p, Position) * CFrame.new(0, 0, -distance / -3)
beam.Position = script.Parent.Torso.Position
beam.Orientation = script.Parent.Torso.Orientation
game:GetService("Debris"):AddItem(beam, 0.001) --]]

if Hit == nil and script.Parent.Humanoid then
wanderTarget = getWanderTarget()
script.Parent.Humanoid:MoveTo(wanderTarget, script.Parent.Torso)
wait(0.5)
end

if Part then
wait()
print("Moving")
script.Parent.Humanoid:MoveTo(game.Workspace.Center.Position)
wait(1)
Part = nil
end
end