So my projectile is fine most of the time, it hits where it should be but sometimes when it reaches the hit point it can glitch and do some weird things that will be shown in the following gif:

https://gyazo.com/380995fe03a987e9a5147af70af2dd3e

ignore that part there its not the cause, I just added a part on the hit position to see if the problem is with the tweening of when the ray detects the hit part

The code:

function NormalSpellCast(SpellName, Wand, Player, MouseHitP)
	local ColorValue = ReplicatedStorage.Spells:FindFirstChild(SpellName).ColorValue.Value
	if Wand.Rapid.Value == false then
		Wand.Spell.Value = ""
	end	
	local TheBullet = ReplicatedStorage.BULLET:Clone()
	TheBullet.Trail.Color = ColorSequence.new(ColorValue)
	TheBullet.PointLight.Color = ColorValue
	TheBullet.Parent = workspace.Spells
	TheBullet.CFrame = Wand.Handle.Tip.CFrame
	local Ignore = {Player.Character, workspace.Spells, workspace.Effects}
	local Region3Module = require(script.RotatedRegion3)
	local InputRegion = Region3Module.fromPart(Wand.Handle.Tip) -- creates a region based on your part's size and location
	local InsideInput = InputRegion:cast({Player.Character, workspace.Spells, workspace.Effects, workspace.Characters, workspace.NPCs}, 1000) 	
	if #InsideInput == 0 then
		repeat	
			local SpellRay = Ray.new(TheBullet.CFrame.p, (MouseHitP - TheBullet.CFrame.p).Unit * 15)
			local Hit, Position = workspace:FindPartOnRayWithIgnoreList(SpellRay, Ignore)	
			local TweenInformation = TweenInfo.new(0.05, Enum.EasingStyle.Linear)
			local TweenGoals = {
				CFrame = CFrame.new(Position) --* CFrame.new(math.random(-1,1), math.random(-1,1), math.random(-1,1))
			}
			local TweenAnimation = TweenService:Create(TheBullet, TweenInformation, TweenGoals)	
			TweenAnimation:Play()
			if Hit then				
				local TweenInformation = TweenInfo.new(0.05, Enum.EasingStyle.Linear)
				local TweenGoals = {
					CFrame = CFrame.new(Position)
				}
				local TweenAnimation = TweenService:Create(TheBullet, TweenInformation, TweenGoals)	
				TweenAnimation:Play()
				TweenAnimation.Completed:Wait()	
				local h = Hit.Parent:FindFirstChildOfClass("Humanoid") or Hit.Parent.Parent:FindFirstChildOfClass("Humanoid")
				if h ~= nil then
					if h.Parent:FindFirstChild("Ignore") then
						
					else
						if h.Health > 0  then
							TheBullet:Destroy()
							SpellHit(SpellName, h.Parent, Player)
						end
					end
				else
					TheBullet:Destroy()
					local Effect = ReplicatedStorage.EFFECT:Clone()
					Effect.Attachment.Sparks.Color = ColorSequence.new(ColorValue)
					Effect.Attachment.Sparks2.Color = ColorSequence.new(ColorValue)
					Effect.Parent = workspace.Effects
					Effect.Position = Position
					Effect.Script.Disabled = false
					game.Debris:AddItem(Effect,1)
				end
			end
		until Hit or ((TheBullet.CFrame.p - Wand.Handle.Tip.CFrame.p).Magnitude > 2000)
		game:GetService("Debris"):AddItem(TheBullet, 0.5)
	else
		TheBullet:Destroy()
	end	
end
Anonymous