Hot reloading (fast refresh) not working on iOS/Android

Describe the bug In a fresh create-react-native-web-app, I tested fast refresh on both iOS and Android and it seems to not work. The hot reloading does work on the web version, though. I have to manually press ‘r’ in the Metro Bundler window, or press Refresh from the debug actions in the app. Fast refresh works for another React Native app I have on both iOS and Android (was not created from create-react-native-web-app). I reproduced this on two different MacOS machines.

To Reproduce

npx create-react-native-web-app MyApp
cd MyApp
npm run android (or npm run ios)

wait for app to load, then open up src/App.js and change some text, save the file observe that no change happens in the app press ‘r’ in the Metro Bundler window observe that the app now has the change

Version Details

$ npx create-react-native-web-app --version
npx: installed 13 in 2.353s
0.15.4