[INVALID| RC.0 View not refreshed after ionViewWillEnter or ionViewDidEnter

The view of my tab or normal page isn’t refreshed after ionViewWillEnter or ionViewDidEnter with Ionic 2 RC

In ionViewWillEnter I query my API and load the items I need but these aren’t displayed.

Is anyone facing such an issue too? Or anyone as an idea how to solve that?

I opened a ticket:

 https://github.com/driftyco/ionic/issues/8352

Generally speaking I’ve got problem with custom components, therefor I opened a post for it