NumberSequence: all keypoints must be ordered by time?

I tried to fix my errors but every time I do the script just gave me the: NumberSequence: all keypoints must be ordered by time

Help?

local seat = script.Parent
local speed = seat.Velocity.magnitude
local dirt = script.Parent.Trail.ParticleEmitter.Size

if speed >= 1 then
	local dirt = NumberSequence.new{
		NumberSequenceKeypoint.new(0, 0, 0),
		NumberSequenceKeypoint.new(3, 1, 0)
	}
else
	local dirt = NumberSequence.new{
		NumberSequenceKeypoint.new(3, 0, 0),
		NumberSequenceKeypoint.new(0, 1, 0)
	}
end

On the second dirt value, you set time to 3 for the first keypoint and then set the second keypoint's time to 0. Three is not greater than zero. Swap lines 12 and 13.

It did kinda fix things, but when I print it out the script won't detect that the seat part is running.

local seat = script.Parent local speed = seat.Velocity.magnitude local dirt = script.Parent.Trail.ParticleEmitter.Size

while true do if speed >= 1 then local dirt = NumberSequence.new{ NumberSequenceKeypoint.new(0, 0, 0), NumberSequenceKeypoint.new(1, 3, 0.25) } print("Rover Running") wait() else local dirt = NumberSequence.new{ NumberSequenceKeypoint.new(0, 3, 0.25), NumberSequenceKeypoint.new(1, 0, 0) } wait() print("Rover Stopped") end end

The problem is the velocity part I guess. Any fix?