[Brownfield RN iOS] Reanimated crash on JS runtime initialization

[sunxxg]

Description

1. Add react-native-reanimated, @gorhom/bottom-sheet, react-native-worklets to existing iOS app
2. Add 'react-native-reanimated/plugin' to babel.config.js (as the last plugin)
3. Run 'pod install' in ios folder
4. Build and run app in Xcode
5. App loads JS bundle and reaches 100% on the loading screen
6. App crashes immediately at 100%

Steps to reproduce

• React Native version: 0.84.1
• Reanimated version: 4.2.2
• Worklets version: 0.7.4
• iOS deployment target: 15.1
• Hermes: enabled
• Project type: Existing native iOS app (Brownfield)
• TurboModules / Fabric: custom

Snack or a link to a repository

No

Reanimated version

4.2.2

Worklets version

0.7.4

React Native version

0.84.1

Platforms

iOS

JavaScript runtime

None

Workflow

None

Architecture

None

Reanimated feature flags

None

React Native release level

None

Build type

No response

Device

No response

Host machine

None

Device model

No response

Acknowledgements

Yes

[github-actions]

Hey! 👋

It looks like you've omitted a few important sections from the issue template.

Please complete Snack or a link to a repository section.

[github-actions]

Hey! 👋

The issue doesn't seem to contain a minimal reproduction.

Could you provide a snack or a link to a GitHub repository under your username that reproduces the problem?

[sunxxg]

I'm integrating React Native into an existing iOS application as a Framework / SDK, and after adding react-native-reanimated, the app crashes when the JS bundle finishes loading (progress reaches 100%).