So Path.Blocked doesnt work... Is there a way around it?

So I was working with the pathfinding service and everything was going fine... until I realized that Path.Blocked apparently doesn't work correctly! As a result, I've been trying to find a way around this. I came up with a solution of maybe making lines through the waypoints and checking for a touched event or something? I'm not sure how I'd do that though. If you have any ideas I'm all ears!

Here is my code - it needs to create a new path if a part blocks the path....

--Pahfinding service
local pathfinding = game:GetService("PathfindingService")
--Settings for the path
local obHorSep = 3
local obVerSep = 5
--Variables for storing the waypoints and the current waypoint index
local waypoints
local curWayIndex
--Variables for npc, npc humanoid, the object, and the destination.
local npc
local npcHum
local part
local destination
--Stores if the npc is moving
local moving = false
--Creates Path
function createPath()
    --Creates the path type
    local path = pathfinding:CreatePath({AgentRadius=obHorSep,AgentHeight=obVerSep})
    --Creates path between points
    path:ComputeAsync(npcHum.RootPart.Position,destination)
    path:ComputeAsync(npcHum.RootPart.Position,destination)
    --Checks if the path was successfully made
    if path.Status == Enum.PathStatus.Success then
        waypoints = path:GetWaypoints() --Gets waypoints
        --Sets the index to the start
        curWayIndex = 1
        --Starts movement
        moving = true
        npcHum:MoveTo(waypoints[curWayIndex].Position)
        --After first movement, the moveToFinish will complete the rest
    else
        --Path was not successfully made
    end
    --Connects pathBlocked for if the path gets blocked
    path.Blocked:Connect(pathBlocked)
    local color = BrickColor.Random()
    for _, v in pairs(waypoints) do
        local ball = Instance.new("Part",workspace)
        ball.Size = Vector3.new(1,1,1)
        ball.BrickColor = color
        ball.Shape = Enum.PartType.Ball
        ball.Material = Enum.Material.Neon
        ball.Anchored = true
        ball.Position = v.Position
        ball.CanCollide = false
    end
end
--Sets values
function setValues(npc1,part1)
    --Makes the values public
    npc = npc1
    part = part1
    --Finds npc humanoid
    for _,v in pairs(npc:GetDescendants()) do
        --Checks if descendant is humanoid
        if v:IsA("Humanoid") then
            --Sets the public npcHum value to the humanoid
            npcHum = v
            --Connects moveToFinish to npcHum so it reached next waypoint.
            npcHum.MoveToFinished:Connect(moveToFinish)
            break
        end
    end
    --Finds the destination depending on if it is a model or part
    if part:IsA("Model") then --If part is a model
        if part.PrimaryPart then --Check if it has a primary part
            destination = part.PrimaryPart.position
        else --if model doesn't have primary part
            --Set destination as the first part object in it.
            destination = part:FindFirstChildOfClass("Part").position
        end
    else --If the part isn't a model
        --Just set the destination to the part's position
        destination = part.Position
    end
    createPath()
end
--Runs if path gets blocked!
function pathBlocked(blockIdx)
    print("Oh no! Blockage in the path!")
    --Checks if blockage is behind or ahead.
    if blockIdx > curWayIndex then --It is infront
        print("The blockage is infront, we need to make a new path!")
        --create a new path
        createPath()
    else
        --It is behind and nothing needs to happen
        print("Dont worry, the blockage is behind!")
    end
end
--Runs after the humanoid finishes moving to one waypoint
function moveToFinish(reached)
    --Checks if npc has reached point and hasnt reached endpoint.
    if reached and curWayIndex < #waypoints then
        --Ups waypoint Index
        curWayIndex = curWayIndex+1
        --Moves to next index
        npcHum:MoveTo(waypoints[curWayIndex].Position)
    elseif curWayIndex == #waypoints then
        moving = false
        print("Point Reached!")
    end
end
setValues(script.Parent,workspace.Test.PartSpecial)

Oh also I read about this... https://devforum.roblox.com/t/pathfindingservice-path-blocked-not-firing-why/278379 They seemed to have the same problem as me. There was a kind of solution at the end, but I'm not sure how I'd even do that!

I tried to change it to:

if path.Status == Enum.PathStatus.Success then
        waypoints = path:GetWaypoints() --Gets waypoints
        --Sets the index to the start
        curWayIndex = 1
        --Starts movement
        moving = true
        --START CHECKING FOR VELOCITY CHANGE
        npcHum.RootPart:GetPropertyChangedSignal('Velocity'):Connect(velocityChanged)
        npcHum:MoveTo(waypoints[curWayIndex].Position)
        --After first movement, the moveToFinish will complete the rest
    else

adding this to it:

        --START CHECKING FOR VELOCITY CHANGE
        npcHum.RootPart:GetPropertyChangedSignal('Velocity'):Connect(velocityChanged)

and then I added this function:

--Checks if velocity has gone below 0.1 (not moving)
function velocityChanged()
    print("Changed")
    if(npcHum.RootPart.Velocity.magnitude < 0.1) then
        moving = false
        createPath()
    end
end

Since if it did fire, it would create an infinite loop and moved the connection to here:

for _,v in pairs(npc:GetDescendants()) do
        --Checks if descendant is humanoid
        if v:IsA("Humanoid") then
            --Sets the public npcHum value to the humanoid
            npcHum = v
            --Connects moveToFinish to npcHum so it reached next waypoint.
            npcHum.MoveToFinished:Connect(moveToFinish)
            --START CHECKING FOR VELOCITY CHANGE
            npcHum.RootPart:GetPropertyChangedSignal('Velocity'):Connect(velocityChanged)
            break
        end
    end

But it still won't work?