sentry-react-native: Unhandled promise rejections will not be caught by Sentry warning not working (only logging message)

Environment

How do you use Sentry? Sentry SaaS (sentry.io)

Which SDK and version? @sentry/react-native@3.4.3

Steps to Reproduce

Run the app.

Expected Result

There should be one of these logs from https://github.com/getsentry/sentry-react-native/blob/f916f2b3afbb9884f9037b8486539ca6cc8b327c/src/js/integrations/reactnativeerrorhandlers.ts#L141:

• Unhandled promise rejections will not be caught by Sentry. Read about how to fix this on our troubleshooting page.
• Unhandled promise rejections will be caught by Sentry.
• Unhandled promise rejections will not be caught by Sentry. Read about how to fix this on our troubleshooting page.

Actual Result

No message in logs.

Replacing:

logger.warn("Unhandled promise rejections will not be caught by Sentry. Read about how to fix this on our troubleshooting page.");

by

setTimeout(() => console.warn("Unhandled promise rejections will not be caught by Sentry. Read about how to fix this on our troubleshooting page."), 0);

solves the issue (setTimeout and console instead of logger are both required). Maybe the logger is not yet ready at this time…