Ionic 4 iOS sidemenu not working

I just fired up a fresh v4 project, angular with sidemenu.
While it is working on Android, it is not on an iPhone 5.
Does not swipe open nor does the menu-toggle work.

I am using Ionic DevApp.

Anyone else?

Ionic Info:

ionic (Ionic CLI)          : 4.1.0
   Ionic Framework            : @ionic/angular 4.0.0-beta.3
   @angular-devkit/core       : 0.7.4
   @angular-devkit/schematics : 0.7.4
   @angular/cli               : 6.1.4
   @ionic/ng-toolkit          : 1.0.7
   @ionic/schematics-angular  : 1.0.5

I just updated Ionic CLI to 4.1.1 and now it works.
Not sure if that was the problem or if I just needed to re-serve the app.