[iOS 26] Back Button disables if headerShown: false or custom header used

[iliapnmrv]

Description

Hi! Thank you for your work!

There is a bug if I set headerShown: false or use custom header and then navigate to next screen. At first back button works fine but then it disables. The only option to leave the screen is to use native swipe back or reload the app

Watch the video with comparison, it is self-explanatory

headerShown: false or header	headerShown: true
ScreenRecording_10-11-2025.21-51-59_1.MP4	ScreenRecording_10-11-2025.21-56-40_1.MP4

I tried it without Screen 1, but it is required to reproduce the bug

Steps to reproduce

1. Navigate from Screen 1 to Screen 2 (screen with headerShown: false)
2. Navigate to Screen 3
3. Go back to Screen 2
4. Navigate to Screen 3 <- Back Button disables here

Snack or a link to a repository

https://github.com/iliapnmrv/rn-screens-ios26-disabled-back-button

Screens version

4.16.0

React Native version

0.82.0

Platforms

iOS

JavaScript runtime

None

Workflow

None

Architecture

Fabric (New Architecture)

Build type

None

Device

None

Device model

any iOS device, iOS 26 is required

Acknowledgements

Yes

[t0maboro]

Hi @iliapnmrv ,

Thank you for reporting this issue and providing all the necessary information.

I can confirm that the bug was present in version 4.16, but it has already been resolved on the main branch. I'm currently preparing a minimal patch that should address the issue in the meantime, until version 4.17 is released.

[t0maboro]

@iliapnmrv I recommend applying the patch from #3173 to version 4.16. This fix will be released as part of version 4.17.

[iliapnmrv]

@t0maboro Thank you!