Ionic 5 page-transitions glitching

Hi all,

On my ionic 5 + Angular 9 application I have some issues with the page transitions on iOS Devices.
The ion-toolbar on top makes a weird animation on a lot of pages.
I don’t see what I’m doing wrong here. It works in the browser and on Android.

Does anyone know how to fix this?
I already tried moving code from my ngOnInit() and more potential solutions, but without any luck.