Problem release generated http httpclient

Hi, in my app I have a login, in serve mode, lab and even with ionic cordoba run android in my device. But… When I generate the release build, even with --prod. When I install the app in any device, my login doesn’t work. I debug the app and I found that when I click in the Login button, the ejecution only go to my provider and dont return anything.

Time ago the releases that I generated, were working fine. But I don’t know what can be. I also tried to change with observable, promises, http, httpclient but no success. Only in release mode doesn’t work.

I tried with other computer, other project with only a button that request data, but same result in release mode, with debug mode works fine!.