[Clickable][iOS] Crash after removing children

[LeonDvlpmnt]

Description

When you remove children from a Clickable component a crash will occur. This is the exact error:

Thread 1: "Attempt to unmount a view which has a different index. (parent: <RNGestureHandlerButton: 0x102199150; baseClass = UIControl; frame = (0 0; 393 34); layer = <CALayer: 0x600000dd7ea0>>, child: <RCTParagraphComponentView: 0x101909a60; frame = (0 34; 393 17); opaque = NO; tag = 42; layer = <CALayer: 0x600000dfc150>; attributedText = New child{\n EventEmitter = {length = 8, bytes = 0x1800720300600000};\n NSBackgroundColor = \"UIExtendedSRGBColorSpace 0 0 0 0\";\n NSColor = \"UIExtendedSRGBColorSpace 0 0 0 1\";\n NSFont = \"<UICTFont: 0x101add050> font-family: \\\".SFUI-Regular\\\"; font-weight: normal; font-style: normal; font-size: 14.00pt\";\n}>, index: 2, actual index: 1, tag at index: 14)"

Steps to reproduce

First add some children to the Clickable, then remove them. It will instantly cause a crash:

const [children, setChildren] = useState<React.ReactNode[]>([]);

return (
  <View style={[styles.container, { marginTop: safeAreaInsets.top }]}>
    <Clickable>
      <Text>
        Clickable
      </Text>

      {children.map((child, index) => (
        <View key={index}>
          {child}
        </View>
      ))}
    </Clickable>

    <Pressable onPress={() => setChildren([...children, <Text key={children.length}>New child</Text>])}>
      <Text>
        Add child to Clickable
      </Text>
    </Pressable>

    <Pressable onPress={() => setChildren(children.slice(0, -1))}>
      <Text>
        Remove child from Clickable
      </Text>
    </Pressable>
  </View>
);

A link to a Gist, an Expo Snack or a link to a repository based on this template that reproduces the bug.

https://github.com/LeonDvlpmnt/ClickableReproducer

Gesture Handler version

3.0.0-nightly-20260403-d21f1dd91

React Native version

0.84.1

Platforms

iOS

JavaScript runtime

Hermes

Workflow

React Native (without Expo)

Architecture

New Architecture (Fabric)

Build type

None

Device

None

Device model

No response

Acknowledgements

Yes

[m-bert]

Hi @LeonDvlpmnt! Thank you for such quick feedback on the new component (though it is button-related issue)!

It should be resolved in #4065, could you please check that?

[LeonDvlpmnt]

@m-bert thanks for taking a look. I applied the patch locally and it works fine now!