Switch language in FF Preview using radio button not selected but the function is running

Troubleshooting

Hi, in my app I have a radio button to change my language. But when I switch language the language is change but the checklist in left side of the radio button text is not active. Then when I navigate back of the language page, the radio button active is reset to default. I don't see any variable like "Is English" or "Is Chinese", if dark mode there is a variable like"Is Dark Mode".

What have you tried so far?

I've make a action to switch language and its work but the radio button is not active when I click.

Did you check FlutterFlow's Documentation for this topic?
Yes