Router breaking after tab change

### Info
This is an issue running on iOS. When you change the tab then go back to schedule, swiping back causes a blank screen to appear (the Schedule component isn't rendered). Tested on the latest version from `ionic start`

### Steps to reproduce

- Run the app **in iOS mode** in your browser or on iOS device / Simulator
- Navigate to a tab other than Schedule
- Click on Schedule
- Swipe from the left to go "back"