[iOS] blank list on momentum if using sticky

[Freddy03h]

Description

If we scroll top for a momentum effect on iOS, at the end of the momentum, the whole list disappear.
It's only graphic because if we start a new interaction with it (scrolling) it re-appears.
This only happens when using stickyHeaderIndices, but it happen in dev and release mode, on a simulator and a real device.

Current behavior

Simulator.Screen.Recording.-.iPhone.17.Pro.-.2025-11-22.at.15.37.28.mov

Expected behavior

List does not disappear at the end of the bouncing momentum.

Reproduction

https://github.com/Freddy03h/flash-list-ios-momentum-blank-issue

Platform

• iOS
• Android
• Web (if applicable)

Environment

React Native info output:

System:
  OS: macOS 26.1
  CPU: (10) arm64 Apple M1 Pro
  Memory: 518.36 MB / 16.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 22.17.1
    path: /Users/freddy/.nvm/versions/node/v22.17.1/bin/node
  Yarn:
    version: 1.22.19
    path: /usr/local/bin/yarn
  npm:
    version: 10.9.2
    path: /Users/freddy/.nvm/versions/node/v22.17.1/bin/npm
  Watchman:
    version: 2023.08.14.00
    path: /usr/local/bin/watchman
Managers:
  CocoaPods:
    version: 1.16.2
    path: /Users/freddy/.rbenv/shims/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 25.1
      - iOS 26.1
      - macOS 26.1
      - tvOS 26.1
      - visionOS 26.1
      - watchOS 26.1
  Android SDK:
    API Levels:
      - "27"
      - "28"
      - "29"
      - "30"
      - "31"
      - "33"
      - "34"
      - "35"
      - "36"
    Build Tools:
      - 27.0.3
      - 28.0.3
      - 29.0.3
      - 30.0.2
      - 30.0.3
      - 31.0.0
      - 32.0.0
      - 33.0.0
      - 33.0.1
      - 34.0.0
      - 35.0.0
      - 36.0.0
    System Images:
      - android-27 | Google APIs Intel x86 Atom
      - android-29 | Google APIs Intel x86 Atom
      - android-30 | Google APIs ARM 64 v8a
      - android-31 | Google APIs ARM 64 v8a
      - android-33 | Google APIs ARM 64 v8a
      - android-35 | Google APIs Tablet ARM 64 v8a
    Android NDK: Not Found
IDEs:
  Android Studio: 2021.1 AI-211.7628.21.2111.8309675
  Xcode:
    version: 26.1/17B55
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.11
    path: /usr/bin/javac
  Ruby:
    version: 2.7.4
    path: /Users/freddy/.rbenv/shims/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 20.0.0
    wanted: 20.0.0
  react:
    installed: 19.1.1
    wanted: 19.1.1
  react-native:
    installed: 0.82.1
    wanted: 0.82.1
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: true

FlashList version: 2.2.0
ReactNative version: 0.82.1

Checklist

• I've searched existing issues and couldn't find a duplicate
• I've provided a minimal reproduction (Expo Snack preferred)
• I'm using the latest version of @shopify/flash-list
• I've included all required information above

[Freddy03h]

I can't reproduce the bug on Expo Snack because the bug isn't reproductible on react-native 0.81

But I tested 0.83 and it still exist : https://github.com/Freddy03h/flash-list-ios-momentum-blank-issue/tree/0.83