Ionic maps with ionic-native plugin returning grey screen with google logo

I’m using ionic-native plugin and it works just fine with the browser, but when i build it to Android it gives me this grey screen with google logo.

Version Ionic V3.

I’ve set package.json with the api key:

cordova-plugin-googlemaps": {
        "API_KEY_FOR_ANDROID": <api-key>,
        "API_KEY_FOR_IOS": <api-key>


    <plugin name="cordova-plugin-googlemaps" spec="2.4.6">
        <variable name="API_KEY_FOR_ANDROID" value="<api-key>" />
        <variable name="API_KEY_FOR_IOS" value="<api-key>" />

Same problem. Did you manage to solve it?