Android: Crashes are not reported sometimes

[pavel-zaletski]

What React Native libraries do you use?

Hermes, React Navigation

Are you using sentry.io or on-premise?

on-premise (Self-Hosted)

@sentry/react-native SDK Version

6.11.0

How does your development environment look like?

System:
  OS: macOS 15.4.1
  CPU: (8) arm64 Apple M2
  Memory: 241.48 MB / 16.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 22.14.0
    path: /usr/local/bin/node
  Yarn:
    version: 1.22.22
    path: /usr/local/bin/yarn
  npm:
    version: 10.9.2
    path: /usr/local/bin/npm
  Watchman:
    version: 2025.04.14.00
    path: /opt/homebrew/bin/watchman
Managers:
  CocoaPods:
    version: 1.16.2
    path: /opt/homebrew/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 24.2
      - iOS 18.2
      - macOS 15.2
      - tvOS 18.2
      - visionOS 2.2
      - watchOS 11.2
  Android SDK: Not Found
IDEs:
  Android Studio: 2024.3 AI-243.24978.46.2431.13363775
  Xcode:
    version: 16.2/16C5032a
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.15
    path: /usr/bin/javac
  Ruby:
    version: 3.4.3
    path: /opt/homebrew/opt/ruby/bin/ruby
npmPackages:
  "@react-native-community/cli": Not Found
  react: Not Found
  react-native: Not Found
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: false
iOS:
  hermesEnabled: true
  newArchEnabled: false

Sentry.init()

 Sentry.init({
      release: RELEASE_NAME,
      dist: BUILD_NUMBER,
      dsn: CONFIG.DSN,
      environment: ENV_GLOBAL.toLowerCase(),
      enabled: true,
      tracesSampleRate: 1.0,
      attachStacktrace: true,
      enableNativeFramesTracking: true,
      enableNativeCrashHandling: true,
      enableAutoSessionTracking: true,
      sessionTrackingIntervalMillis: 30000,
      beforeBreadcrumb(breadcrumb, hint) {
        ...
      },
      replaysSessionSampleRate: 1.0,
      replaysOnErrorSampleRate: 1.0,
      integrations: [
        Sentry.mobileReplayIntegration({
          ...
        }),
      ],
    });

Steps to Reproduce

Crashes example in Embrace:

Crashes are not reported in Sentry:

Expected Result

On iOS everything is working fine.

Example in Embrace:

Crashes in Sentry:

Actual Result

Crashes are reported in Sentry only when there is a message after crash - [App] keeps stopping

[Willibaur]

We've seen this issue as well on a fresh new Expo App using SDK-53 with bun, any help is appreciated 🙏🏼

[krystofwoldrich]

Hi @pavel-zaletski,
thank you for the message,

to be able to help you with the issue, let me ask a few clarifying questions.

---

Are you using both the Sentry and Embrace SDKs at the same time in the application? Does the Sentry SDK not report crashes when used alone?

---

Do you test the crash reporting in Release builds? Does the application closes on the crash or does it keep open without the React UI?

---

Do you open the application again after the crash? (The Sentry SDK uploads the crash reports on the next application start.)

[krystofwoldrich]

Thank you @Willibaur for the message.

[krystofwoldrich]

After closer investigation this might be related to

• [newarch][android] Sentry.nativeCrash no longer crashes RN #4446

[unendingblue]

I was experiencing the same issue up until a few minutes ago while writing this message. I haven't been able to pinpoint why/when it happens - the only thing I did in the meantime is discard a couple of old builds from the closed testing track.

• Using Old Architecture
• Expo 53.0.9
• RN 0.79.2
• React 19.1.0 (with experiments.reactCanary: true)
• @sentry/react-native 6.14.0
• Doubt it matters, but also using Bun as the package manager for EAS build (built locally)

Tried enableAndroidGradlePlugin option in the Expo plugin both set to true and false, no change.
Only Sentry's SDK is used (no Crashlytics/Embrace).
Tested on a Release build - the app closes on the crash with a system error, but Sentry does not pick up the event on re-open.