[4.0.0-beta.16] ion-slides not working properly on fresh page load

[bergben]

Bug Report

Ionic Info
Run ionic info from a terminal/cmd prompt and paste the output below.

   ionic (Ionic CLI)             : 4.3.1 (C:\Users\***\AppData\Roaming\npm\node_modules\ionic)
   Ionic Framework               : @ionic/angular 4.0.0-beta.16
   @angular-devkit/build-angular : 0.10.6
   @angular-devkit/schematics    : 7.0.6
   @angular/cli                  : 7.0.6
   @ionic/angular-toolkit        : 1.2.0

System:

   NodeJS : v10.13.0 (C:\Program Files\nodejs\node.exe)
   npm    : 5.6.0
   OS     : Windows 10

Describe the Bug
Ionic Slides Component is not working when the page is refreshed.

Steps to Reproduce
Steps to reproduce the behavior:

1. ionic start tester tabs --type=angular
2. In home.html add Slides like so:

    <ion-slides>
        <ion-slide>
            <h1>Slide 1</h1>
        </ion-slide>
        <ion-slide>
            <h1>Slide 2</h1>
        </ion-slide>
        <ion-slide>
            <h1>Slide 3</h1>
        </ion-slide>
    </ion-slides>
</ion-content>

3. ionic serve
4. Refresh the page where the slides are on with F5 (without needing to navigate)
5. Slides component is broken (sliding not working etc.)

Related Code
See steps to reproduce

Expected Behavior
Slides component should still work as expected.

[bergben]

Still an issue in [4.0.0-beta.17], makes the Slides unusable in its current state...

[bryce13950]

Could you describe a bit what is happening? Is it just completely broken? Is the animation messed up?

[bergben]

I think it's best to show with a screen capture:
Minimal example with starter app: https://imgur.com/a/vh8WK67
Actual app with the problem: https://imgur.com/a/1CpG38c

I noticed it does not happen 100% of the time, but a good 50% at least so if you just follow the steps described I think you should be able to reproduce the issue.

If you need any other information please let me know!

[bryce13950]

Ahhh is it that it is not snapping into place?

[bergben]

Basically yes. The content is not loading correctly either, but I am quite sure that is fixed once the snapping is fixed 👍