React Native: Keychain autofill not working until TextInput is clicked again

I am building a react-native app, using expo@43.0.0 and I am testing on a device with iOS 15.1

I have two TextInputs for the login:

    <TextInput
        textContentType='username'
        autoComplete={true}
        autoCorrect={false}
        value={email}
        onChangeText={(input) => setEmail(input)}
      />

      <TextInput
        autoComplete={true}
        textContentType='password'
        secureTextEntry={true}
        value={password}
        onChangeText={(input) => setPassword(input)}
      />

Problem:

When I click into the TextInput for the username, the keyboard comes in. I now click the key icon for keychain and I can select credentials from the icloud-keychain. After selecting the credentials, the keyboard disappears again, but the two TextInputs remain empty. When I now click into one of the two TextInput Components, both are filled correctly.

Anyone ran into something similar or has a solution, that the both inputs are filled as soon as the credentials are selected, without clicking them again?

Thank you.