[5.14.5] TextInput with multiline inside Portal causes rapid flicker and infinite onChangeText calls [iOS]

[nahooni0511]

Current behaviour

Typing in a react-native-paper TextInput with multiline inside a Portal causes rapid flicker and floods onChangeText (dozens of calls per second). Removing either Portal or multiline stops the issue.

Expected behaviour

No flicker; onChangeText fires once per user input.

How to reproduce?

1. Render a multiline TextInput inside a Portal.
2. Run iOS
3. Focus the field and type characters.

import * as React from 'react';
import { Portal, TextInput } from 'react-native-paper';

export default function Repro() {
  const [text, setText] = React.useState('');
  return (
    <Portal>
      <TextInput
        label="Notes"
        mode="outlined"
        multiline
        value={text}
        onChangeText={(t) => {
          console.count('onChangeText'); // spams rapidly
          setText(t);
        }}
        style={{ minHeight: 120 }}
      />
    </Portal>
  );
}

What have you tried so far?

• Removing multiline → issue gone
• Removing Portal → issue gone

Your Environment

software	version
ios	x
android	x
react-native	0.81.5
react-native-paper	5.14.5
node	x.x.x
npm or yarn	x.x.x
expo sdk	N/A