Form button not responding

I have deployed my app to Streamlit Cloud. The app has a form submit button. App works fine when I’m interacting with it. Esp on my mobile Chrome if I leave the app page open for a few minutes and come back to try out again, the button does not respond or do anything. The only option is to force refresh the whole page and try again. Why could this be happening?

If the frontend looses contact with the backend, all the widgets will deactivate. I’m guessing here, but maybe your mobile browser is disconnecting the session. Hence, when you return, the session has been lost so everything is greyed out/deactivated.