Ionic v1.3.4, ionic cli 3.19.0, google maps problem


I have ionic app v1x made with cli 2.0 and I had javascript google maps within the app.

The app worked great, but now I’m making update for iphoneX and I update ionic cli to 3.19 and ionic to 1.3.4 and using same API keys from Google Maps and all code is the same, however when I build and install my app on the device( same for iphoneX and iphone6) the map is shown, but if I killed the map or refresh the view than only the map is not show and other elements like avatar, button etc are shown.

Can someone help me? is this related with cli 3.19 or with ionic v1.3.4?