I have set ion-slides and nested with another ion-slides inside and the pager for second ion-slides trigger first ion-slides as well
This is an issue with the way Ionic implemented ion-slides.
The variables for a slide are global and thus things get weird when adding multiple ion-slides on the same page.
This is a PR that solves this issue: https://github.com/ionic-team/ionic/pull/11791
If you don’t want to do this: you can use the Swiper-library (which ion-slides uses internally) to get the same result.