Update component-names.mdx

Author: krystofwoldrich

docs/platforms/react-native/integrations/component-names.mdx

@@ -73,7 +73,10 @@ The Sentry browser SDK will pick off the value from these `data` attributes and
 
 ## Troubleshooting
 
-- Use `export SENTRY_LOG_LEVEL=debug` to enable debug logs. When generating the JS Bundle, you should see logs about the Sentry Metro Plugin saving and loading the default Babel transformer.
+- If component names are missing in the reported events, check if the annotations are present in the JS bundle generated by Metro. You can text search in the bundle for the `data-sentry-component` key.
+- To add the annotations `config.transformer.babelTransformerPath` is required to be set in the Metro config before calling `withSentryConfig`.
+- Function `getSentryExpoConfig` returns the configuration with the Sentry Babel Transformer set, do not overwrite `config.transformer.babelTransformerPath`.
+- Use `export SENTRY_LOG_LEVEL=debug` to enable debug logs and observe if Sentry detected the default transformer and if Sentry Babel Transformer was executed.
 
 ## Next Steps: