facebook / facebook/facebook-ios-sdk

Facebook iOS SDK login

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bug needs-triage
Dominant language
Swift
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Description

### Checklist before submitting a bug report

- [x] I've updated to the latest released version of the SDK
- [x] I've searched for existing [GitHub issues](https://github.com/facebook/facebook-ios-sdk/issues)
- [x] I've looked for existing answers on [Stack Overflow](https://facebook.stackoverflow.com), the [Facebook Developer Community Forum](https://developers.facebook.com/community/) and the [Facebook Developers Group](https://www.facebook.com/groups/fbdevelopers)
- [x] I've read the [Code of Conduct](https://github.com/facebook/facebook-ios-sdk/blob/main/CODE_OF_CONDUCT.md)
- [x] This issue is not security related and can safely be disclosed publicly on GitHub

### Xcode version

26.4.1

### Facebook iOS SDK version

18.0

### Dependency Manager

CocoaPods

### SDK Framework

Core

### Goals

Use Facebook iOS SDK to login into my app.

### Expected results

after calling [loginManager logInFromViewController:controller configuration:configuration completion:^(FBSDKLoginManagerLoginResult *result, NSError *error) login flow should start

### Actual results

After calling [loginManager logInFromViewController:controller configuration:configuration completion:^(FBSDKLoginManagerLoginResult *result, NSError *error) only a white screen appears on iPhone11 and iPhone 17. Works fine on iPhone 16. Even more strange is the fact that on both iPhone 11 or 17 Facebook web page opened from Safari or Chrome does not work.

### Steps to reproduce

_No response_

### Code samples & details

```swift
// INSERT YOUR CODE HERE
var example = "Example code"
```

Contributor guide

Open the contributing guide

Assessment

This issue has not been assessed yet.

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