Ios build result is not working on Iphone while Android does

Dear all,

I have my application working properly on web and the generated apk for android also.
Unfortunately the generated ipa for ios not… It produces input elements (inside a login form) where it is not possible to click inside for typing a text!

I have tested with a sample ionic3 (https://www.djamware.com/post/58e657b680aca764ec903c2d/ionic-3-and-angular-4-mobile-app-example) and I can generate a working ios app…

Sincerely yours,