Doing a back button navigation or Using the backToPreviousPage method to a page using <router-outlet></router-outlet> results in a blank page as though the <router-outlet></router-outlet> is no longer present on the page because further routing on that page no longer works.

nativescript │ 3.2.0-2017-07-31-9530
tns-core-modules │ 3.1.1
tns-android │ 3.1.0
tns-ios │ 3.1.0
nativescript-angular | 4.3.0-2017-8-10-8
@angular/* | 4.2.6