I can change the iOS splash screen but I can't change the Android splash screen. Why?

In Edit>Project Settings>Player, I am able to set the splash screen for iOS. But when I switch to the Android tab, the option to change the splash screen is greyed out. But I do see that the Mobile Splash Screen is a shared setting between multiple platforms. So I went ahead and set the Mobile Splash Screen in the iOS tab, hoping that it would also reflect in the Android tab since it is a shared setting.

I have tested on both my iOS and Android devices. My splash screen only shows on my iOS device, but not on my Android device.

I do not have either Android Pro or iOS Pro. Just Unity Pro. Correct me if I'm wrong but this can't be a "Pro License" issue right? Given that I can change the iOS settings but not the Android settings.