Steps to reproduce:
1. Download 1196004_repro.zip
2. Switch platform to UWP and build project
3. Build the project with Visual Studios
4. When the project launches exit fullscreen mode
5. Notice that the app is distorted
6. Change app size to fix it. Notice that changing app size fixes the issue.

Results: After exiting the fullscreen app is distorted and part of the app isn't visible. After exiting the fullscreen you can see that "Developer Build" in the bottom right corner isn't visible.

Reproduced with: 2019.2.13f1
Not reproducible with: 2020.1.0a13, 2019.3.0b11, 2018.4.12f1 (was fixed in 2019.3.0b7 and 2019.1.0a8)
Regression introduced in: 2020.1.0a1, 2019.3.0b1, 2019.2.9f1

Note:
- Reproducible with Debug and Release configurations. Not reproducible with Master.
- Reproducible with x64 and x86.
- Reproducible with D3D and XAML.