iOS build in App Store Crashes in some cases

Expo Diagnostics:

Expo CLI 3.4.1 environment info:
OS: macOS 10.14.6
Shell: 3.2.57 - /bin/bash
Node: 10.13.0 - ~/.nvm/versions/node/v10.13.0/bin/node
Yarn: 1.19.1 - ~/.nvm/versions/node/v10.13.0/bin/yarn
npm: 6.4.1 - ~/.nvm/versions/node/v10.13.0/bin/npm
Android Studio: 3.5 AI-191.8026.42.35.5977832
Xcode: 10.2.1/10E1001 - /usr/bin/xcodebuild
@storybook/react-native: 4.1.18 => 4.1.18
expo: 34.0.3 => 34.0.3
react: 16.8.3 => 16.8.3
react-native: => 0.59.8
react-navigation: 2.18.3 => 2.18.3
expo-cli: 3.4.1

We have our Production build on app store. In most cases it is running fine.

But some of our customers are reporting issues:

Unhandled JS Exception. Application Main has not been registered.

This seems specific to iOS and only for certain users.
We have suggested that they uninstall, reinstall, restart the phone etc. Nothing has worked.

Since we are not able to reproduce this issue, we are not sure what is going on.

Could you please advise.

Please note: Though the builds are created using expo, I use the Application Loader to upload it on App Store. (Dont think this matters, but my Application loader version is 3.7.2)

@adamjnav @jess @wodin

Hey @trinet - it’s curious that it would keep happening after uninstall-reinstall without users doing anything else in the app. Are you noticing that it’s happening on specific model of device?

One place to poke is that it might be related to how/whether you clear or handle data from Secure Store which can store data across installations.

Sorry to not be a ton more help - let us know if you are able to repro and/or isolate further?


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