Fast Cast Module Visual Bullet Issue

Help and Feedback Scripting Support
1

So lately, I’ve been using the FastCast module in order to test projectile-shooting NPCs. I got all the basic stuff working.

Anyways, an issue occurs where the visual bullet, when fired for long enough, starts to glitch out visually. However, everything seems to be working smoothly in server view.

Here is the video (DropBox Link):

External Media

Here is the script (regular script placed within the dummy model):

local rs = game:GetService("ReplicatedStorage")

local fastcast = require(rs.FastCastRedux)
local bullet = rs.NPCBullet

local caster = fastcast.new()

local dummy = script.Parent 
local humanoidRootPart = dummy:WaitForChild("HumanoidRootPart") 

local behavior = fastcast.newBehavior()

local params = RaycastParams.new()
params.FilterType = Enum.RaycastFilterType.Exclude 
params.FilterDescendantsInstances = {humanoidRootPart} 

behavior.RaycastParams = params


behavior.AutoIgnoreContainer = true
behavior.CosmeticBulletTemplate = bullet
behavior.CosmeticBulletContainer = workspace.NPCProjectiles
behavior.MaxDistance = 100


caster.LengthChanged:Connect(function(ActiveCast, lastPoint, rayDir, displacement, segmentVelocity, cosmeticBulletObject)
	local newpos = lastPoint + (rayDir * displacement)

	cosmeticBulletObject.Position = newpos
end)


caster.RayHit:Connect(function(ActiveCast, RaycastResult, segmentVelocity, cosmeticBulletObject)
	local explosion = Instance.new("Explosion")
	explosion.BlastRadius = 10
	explosion.Position = RaycastResult.Position 
	explosion.Parent = workspace

	game:GetService("Debris"):AddItem(explosion, 0.2)
	cosmeticBulletObject:Destroy()
end)

local function shootProjectile()
	local firePosition = humanoidRootPart.Position

	local direction = (humanoidRootPart.CFrame.LookVector).unit 

	caster:Fire(firePosition, direction, 50, behavior)
end

local function shootEverySecond()
	while true do
		shootProjectile() 
		wait(1) 
	end
end

shootEverySecond()

I’m still trying to figure out the cause of this, maybe its a desync issue? I’m not too sure as of right now. Any insights would be appreciated.