Layout changed for published app

Hi All,
I have a strange issue with my published app. it seems that styles are no longer loaded. No release has been made.

The problem has beed replicated on Android device and Chrome browser. I think the problem is an chrome update.

Now I have the same problem on local machin (chrome browser only). I created a new page into my app and the problem persist.

<ion-content padding>
  <div class="test-luca">Ciao</div>
page-test {
  .test-luca {
    color: red;

ionic info


   ionic (Ionic CLI)  : 4.10.3 (C:\Users\xxx\AppData\Roaming\npm\node_modules\ionic)
   Ionic Framework    : ionic-angular 3.9.2
   @ionic/app-scripts : 3.1.9


   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : android 7.0.0, browser 5.0.3, ios 4.5.4
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.0.5, cordova-plugin-ionic-webview 1.1.1, (and 8 other plugins)


   Android SDK Tools : 26.1.1 (C:\Users\xxx\AppData\Local\Android\sdk)
   NodeJS            : v8.9.4 (C:\Program Files\nodejs\node.exe)
   npm               : 5.6.0
   OS                : Windows 10

Could you please help me?