Animated - start animation callback is called immediately

Description

When i call the "start()" method of Animated.timing the callback inside it is called immediately and not when the animation finish.

This is the code:

Animated.timing(positionY, {
    toValue: 100,
    duration: 500,
    useNativeDriver: false,
}).start(() => {
   hideMessage()
})

Steps to reproduce

I tried to reproduce the error on Expo online but on that playground the code works as expected. I also uploaded the video of the issue

React Native Version

0.73.5

Affected Platforms

Runtime - Android, Runtime - iOS

Output of npx react-native info

System:
  OS: macOS 14.3.1
  CPU: (12) x64 Apple M3 Pro
  Memory: 98.03 MB / 18.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 18.19.0
    path: /usr/local/opt/node@18/bin/node
  Yarn:
    version: 1.22.21
    path: /usr/local/bin/yarn
  npm:
    version: 10.2.3
    path: /usr/local/opt/node@18/bin/npm
  Watchman: Not Found
Managers:
  CocoaPods:
    version: 1.14.3
    path: /opt/homebrew/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 23.2
      - iOS 17.2
      - macOS 14.2
      - tvOS 17.2
      - visionOS 1.0
      - watchOS 10.2
  Android SDK: Not Found
IDEs:
  Android Studio: 2023.1 AI-231.9392.1.2311.11330709
  Xcode:
    version: 15.2/15C500b
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.9
    path: /usr/bin/javac
  Ruby:
    version: 2.6.10
    path: /usr/bin/ruby
npmPackages:
  "@react-native-community/cli": Not Found
  react:
    installed: 18.2.0
    wanted: 18.2.0
  react-native:
    installed: 0.73.4
    wanted: 0.73.4
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: false
iOS:
  hermesEnabled: true
  newArchEnabled: false

Stacktrace or Logs

My bug is not a crash.

Reproducer

https://snack.expo.dev/9vyz9rIza-lsKdo3usD2v

Screenshots and Videos

https://github.com/facebook/react-native/assets/15747776/3c4fa16c-9b8d-4697-8d56-0879c57597b2

Start with the Animated.timing().start() call in the provided reproducer and compare its behavior with the linked Expo Snack, where the callback reportedly works as expected. Reproduce the report on React Native 0.73.4/0.73.5 for Android and iOS, then verify that the callback runs only after the animation finishes.