New player flow thumbnails don't render during screen animations

New player flow thumbnails don't render during screen animations.

How to reproduce:

1. Sign in to the xbox app with an account that has not played on your minecraft installation

2. Load minecraft

3. Sign into minecraft

4. Click the get started button

5. Observe the thumbnails not appearing until the screen animation is finished playing

6. Click survival

7. Observe the thumbnails once again not appearing until the screen animation is finished playing