BodyVelocity just stopped moving object?

I'm just surprised. A few minutes ago, it was working fine (well the bodyvelocity was), and after I fixed some stuff (I forgot game was FE, so I forgot to set up remote events etc. to create parts), the fireball just didn't move.

(My script is 300 lines long, so I just narrowed it down to the part the fireball gets created.)

Here is the part that gets the fireball created:

local shot = game.ReplicatedStorage.CreateFireballShot:InvokeServer(script.Parent.Name, mouse.Hit.p)

And here is the script in ServerScriptService which listens for those remotes:

function game.ReplicatedStorage.CreateFireballShot.OnServerInvoke(plr, name, mpos)
			local shot = Instance.new("Part", workspace)
			shot.Name = "Shot/"..plr.Name.."/"..name
			game.Debris:AddItem(shot, 10)
			
			shot.BrickColor = BrickColor.new("Bright orange")
			shot.Size = Vector3.new(4,4,4)
			shot.Shape = "Ball"
			shot.Anchored = false
			shot.CanCollide = false
			shot.Transparency = 0.5
			shot.BottomSurface = "SmoothNoOutlines"
			shot.TopSurface = "SmoothNoOutlines"
			shot.FrontSurface = "SmoothNoOutlines"
			shot.BackSurface = "SmoothNoOutlines"
			shot.RightSurface = "SmoothNoOutlines"
			shot.LeftSurface = "SmoothNoOutlines"
			
			shot.CFrame = plr.Character.Torso.CFrame * CFrame.new(0, 0, -4)
			shot.CFrame = CFrame.new(shot.Position, mpos)
			
			local fire = Instance.new("Fire", shot)
			fire.Size = 15
			fire.Heat = 15
			
			local velo = Instance.new("BodyVelocity", shot)
			velo.maxForce = Vector3.new(math.huge, math.huge, math.huge)
			velo.velocity = shot.CFrame.lookVector * 80
			
			return shot
end

(Also narrowed it down ^)