Android App Submission - Double SplashScreen warning

We submitted a small change to our App today to the Android Playstore and got this warning:

Double Splash Screen

The crawler detected a blank loading screen or a custom splash screen that is shown in your app after the system splash screen. Users launching your app on Android 12 or higher will see 2 splash screens.

To fix this issue, update your app to use the SplashScreen API.

We have made no changes to the Splashscreen functionality in this release - has anyone else had this warning appear?