[Ionic 4.1.2] Ion-Slides doesn't show pager, doesn't swipe over.

[GeorgeL9]

Bug Report

Ionic Info

   ionic (Ionic CLI)          : 4.1.2 (/usr/local/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.7
   @angular-devkit/core       : 0.7.5
   @angular-devkit/schematics : 0.7.5
   @angular/cli               : 6.1.5
   @ionic/ng-toolkit          : 1.0.8
   @ionic/schematics-angular  : 1.0.6

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : ios 4.5.5
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.2, cordova-plugin-ionic-webview 2.1.4, (and 4 other plugins)

System:

   ios-deploy : 2.0.0
   NodeJS     : v10.10.0 (/usr/local/Cellar/node/10.10.0/bin/node)
   npm        : 6.4.1
   OS         : macOS High Sierra
   Xcode      : Xcode 10.0 Build version 10A255

Describe the Bug
Ion-Slides with 3 Ion-Slide (local images) don't show the paginator, nor page when running on iOS12 (iPhone 7), but does allow to drag to next slide. The slider does work correctly on Chrome when using ionic serve.

Steps to Reproduce

Related Code
Simple base app, just with ion slides:

<ion-content padding>
  <ion-slides pager="true">
    <ion-slide>
      <img src="/assets/imgs/slide1.png">
    </ion-slide>

    <ion-slide>
      <img src="/assets/imgs/slide2.png">
    </ion-slide>

    <ion-slide>
      <img src="/assets/imgs/slide3.png">
    </ion-slide>
  </ion-slides>
</ion-content>

Expected Behavior
Slides should show pager, and paginate when swiped.

[GeorgeL9]

Interesting discovery, if I tilt the phone into landscape, the pager appears and the functionality works 100%, and returning back to portrait everything works as well.

[abdel-ships-it]

Yeah if you trigger any resize it gets fixed.

[abdel-ships-it]

My testing of this issue was done on ionic 4 beta 5 and 7. I have tested it on later versions and can confirm it works correctly there, checkout 4.0.0-beta.12

[GeorgeL9]

My team has decided to stick with Ionic 3, so I can't test to confirm, but I'll take your word for it.

[ionitron-bot]

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