Platform ready event does not get called for the first launch in IOS

Hello Everyone, My IONIC 3 App does not call platform ready event on the first launch. Because of this, splash screen is never hidden and app is stuck on splash screen.

But when i kill the app and relaunch, everything works normal.

I have tried to remove/add the plugins and platforms but no luck.

Has anyone faced similar issue ?

NOTE: It happens only for IOS, everything works fine in Android.