Slash cframe problem

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1

i have a problem with my slash cframe, i want the slash to appear infront of character and its working most of the time but sometimes the slash is rotated more to left/right side of the character or even behind.
video:

code:

local function animLoader(id,speed)
	animation.AnimationId = id
	local animationTrack = animator:LoadAnimation(animation)
	animationTrack:Play()
	animationTrack.Priority = Enum.AnimationPriority.Action4
	animationTrack:AdjustSpeed(speed)
end

function slash()
	local slash = rs.Weapons.Slash:Clone()
	slash.CFrame =  hrp.CFrame * CFrame.Angles(0,math.rad(90),0)
	slash.Attachment.ParticleEmitter:Emit(1)
	slash.Parent = game.Workspace.DebrisFolder
end

uis.InputBegan:Connect(function(input, gpe)
	if gpe then return end
	if input.UserInputType == Enum.UserInputType.MouseButton1 and equipped then
		coroutine.wrap(function()
			task.wait(.35)
			slash()
		end)()
		animLoader(m1Anims[1],1)
	end
end)
2

Weld it to the humanoid root part.