I have used Custom Action, which works for Google Sign-In using Firebase Authentication.
After signing up, the app will navigate to the "Selection" page.
Google Sign-In and other custom action codes work well.
However, it doesn't navigate to the "Selection" page.
Furthermore, after an error, we re-click the button, and the app navigates successfully.
I think that's because of async function usage.
However, there is no mistake on code, and I used this function on local flutter app.
How do I solve this?