Weird Text FullScreen Issue with Ionic 4 and iOS App

I’m using Capacitor to build the iOS App.

I have a weird issue,
When the app start (after SplashScreen) this what I have currently.

I have no idea why i’m getting this and I have no errors on the Xcode area debug and also in Safari Inspector tools.

So my question is : Do you have any ideas what’s wrong ? I have follow the documentation.

Thank you for your kind attention!