I am building android app using kotlin with firebase firestore. I discovered that anytime I fetch data to display on the homepage fragment, the data do not appear unless I rotate the screen of my device. I have tried to use the saveInstanceState but all to no avail. Please what can I do?

I tried to use the saveInstanceState but to no avail. I expect that once a user logs in to the app, the user should see the recyclerview items on the home page without having to rotate the screen first.