Camera is not going back to players control original view after tweening?

--All scripts made by BM
local TweenService = game:GetService("TweenService")
local player = game:GetService("Players").LocalPlayer
flag = true
local cam = game.Workspace.Camera 
local cutsceneTime = 8
local tweenInfo = TweenInfo.new(
    cutsceneTime,
    Enum.EasingStyle.Quad,
    Enum.EasingDirection.Out,
    0,
    false, 
    0
)

function tween(part1, part2)
    while flag do
        wait(.1)
        cam.CameraType = Enum.CameraType.Scriptable
        cam.CFrame = part1.CFrame  
        local tween = TweenService:Create(cam, tweenInfo, {CFrame = part2.CFrame})
        tween:Pause()
        script.Parent.MouseButton1Click:Connect(function()
            tween:Play()
            flag = false    
        end)
    end
end

wait(.1)
--Wait til player presses play
tween(workspace.cam1, workspace.cam2)
if flag == false then
    camToPlayer()
end

function camToPlayer()
    wait(cutsceneTime)
    cam.CameraType = Enum.CameraType.Scriptable
    player.CameraMode = Enum.CameraMode.Classic --This part doesn't work idk why
end

-I tried different variations such as cam.CameraType = Enum.CameraType.Custom in the function camToPlayer and it just won't reset to player cam control after camera tweening it just stays stationary in my workspace.cam2. Help?