Sounds don't play on second cycle

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1

Hi, I have a script here which is supposed to play a declaration sound and idle sound. While these play as intended on the first cycle (first run), when it loops, it doesn’t play the audio:

local function trainCycle()
local train = game.Workspace.Train1
local startPart = game.Workspace.start_train
local stationPart = game.Workspace.train_station
local stopPart = game.Workspace.train_stop
local speed = 40

local SoundService = game:GetService("SoundService")
local decelerationAudioId = "rbxassetid://14252924361"
local accelerationAudioId = "rbxassetid://14253510273"
local loopedAudioId = "rbxassetid://14253124958"

local function moveTrainSmoothly(startPos, endPos, duration)
	local initialPosition = train.Position
	local t = 0

	game:GetService("TweenService"):Create(train, TweenInfo.new(duration), {
		Position = endPos
	}):Play()

	while t < duration do
		t = t + wait()
		train.Position = initialPosition:Lerp(endPos, t / duration)
	end

	train.Position = endPos
end

local function accelerateTrainSmoothly(startPos, endPos, duration)
	local initialPosition = train.Position
	local initialVelocity = train.AssemblyLinearVelocity

	-- Calculate the desired velocity to reach the end position in the given duration
	local desiredVelocity = (endPos - startPos).unit * (endPos - startPos).magnitude / duration

	game:GetService("TweenService"):Create(train, TweenInfo.new(duration), {
		AssemblyLinearVelocity = desiredVelocity
	}):Play()

	local t = 0
	while t < duration do
		t = t + wait()
		train.AssemblyLinearVelocity = initialVelocity:Lerp(desiredVelocity, t / duration)
		train.Position = initialPosition + train.AssemblyLinearVelocity * t
	end

	train.AssemblyLinearVelocity = desiredVelocity
	train.Position = endPos
end

-- Function to play audio starting at a specific time and ending at a specific time
local function playAudio(audioId, startTime, endTime)
	local sound = Instance.new("Sound")
	sound.Parent = train
	sound.SoundId = audioId
	sound.TimePosition = startTime
	sound:Play()

	while wait() do
		if sound.TimePosition >= endTime then
			sound:Stop()
			break
		end
	end
end

-- Play the first audio immediately
local firstAudio = Instance.new("Sound")
firstAudio.Parent = train
firstAudio.SoundId = decelerationAudioId
firstAudio:Play()

-- Start the looped audio in a separate thread
local loopedAudio = Instance.new("Sound")
loopedAudio.Parent = train
loopedAudio.SoundId = loopedAudioId
loopedAudio.Looped = true
loopedAudio:Play()

while true do
	wait(20) -- Wait for 20 seconds before starting the cycle

	-- Decelerate from start to station
	local decelerationDuration = 10 -- Adjust the duration to control deceleration
	moveTrainSmoothly(startPart.Position, stationPart.Position, decelerationDuration)

	-- Stop the train at the station
	train.AssemblyLinearVelocity = Vector3.new()

	-- Wait for 40 seconds
	wait(10)
	game.ReplicatedStorage.itleave:FireServer()

	-- Accelerate from station to stop
	local accelerationDuration = 20 -- Adjust the duration to control acceleration
	accelerateTrainSmoothly(stationPart.Position, stopPart.Position, accelerationDuration)

	-- Stop the looped audio and wait for train to accelerate again
	loopedAudio:Stop()
	for _, sound in ipairs(train:GetChildren()) do
		if sound:IsA("Sound") then
			sound:Stop()
		end
	end

	-- Stop at the destination
	train.AssemblyLinearVelocity = Vector3.new()

	-- Teleport back to start_train and wait for 3 minutes before starting the cycle again
	train.Position = startPart.Position
	wait(180) -- 3 minutes
end

end

trainCycle()