Assert in Yoga hit on RN 0.81.0-rc

[tido64]

Description

While verifying RNTA for 0.81, I hit this assert on startup which goes away when removing SafeAreaView:

2025-07-22 14:04:03.047 13868-14063 libc com.microsoft.reacttestapp A ~/.gradle/caches/8.14.3/transforms/97aff8a941bc24fe37c775a753fbaec0/transformed/react-android-0.81.0-rc.2-debug/prefab/modules/reactnative/include/yoga/style/StyleValuePool.h:76: StyleLength facebook::yoga::StyleValuePool::getLength(StyleValueHandle) const: assertion "handle.type() == StyleValueHandle::Type::Point || handle.type() == StyleValueHandle::Type::Percent" failed

I haven't been able to investigate this because I'm still catching up after a longer break. For now, I'm using the following workaround:

  if ("RN$Bridgeless" in global && RN$Bridgeless === true) {
    return <View {...props} />;
  } else {
    return (
      <SafeAreaProvider initialMetrics={initialWindowMetrics}>
        <SafeAreaView {...props} />
      </SafeAreaProvider>
    );
  }

Steps to reproduce

1. Clone fix: declare support for 0.81 microsoft/react-native-test-app#2509
2. Remove the workaround in example/SafeAreaView.tsx
3. Build Android:

   cd example
   yarn android -- -PnewArchEnabled=true -PbridgelessEnabled=true

4. In a separate terminal, start the dev server: yarn start
5. Observe that the app crashes/restarts every time we try to open a React Native app

Snack or a link to a repository

microsoft/react-native-test-app#2509

Safe Area Context version

5.2.2

React Native version

0.81.0-rc.2

Platforms

Android

Architecture

Fabric (New Architecture)

Build type

Debug mode

Device

iOS simulator

Device model

iPhone 16 Pro

Acknowledgements

Yes

[janicduplessis]

@cortinico Any ideas about that one?

[cortinico]

No idea. Also I see nothing change on StyleValueHandle.h in 0.81 so not sure what's happening here.

[janicduplessis]

Thanks for having a look, I'll investigate then :)