How to reproduce:
1. Open the user's attached project "UWP_BugReport.zip"
2. In Build Settings, set the Platform to PC, Mac & Linux Standalone and the Target Platform to Windows
3. Build the project
4. Open Command Prompt and navigate to the folder with the newly built project in it
5. Launch the project by entering the following command in Command Prompt: "Tri6 Infinite.exe" -force-feature-level-10-0

Expected results: only the track that Main Camera is in can be seen (see "expected.png")
Actual results: walls of other tracks can be seen through the walls of the track that Main Camera is in (see "actual.png")

Reproducible with: 2019.4.7f1, 2020.1.0b16
Not reproducible with: 2020.1.0f1, 2020.1.1f1, 2020.2.0a20
Could not test with: 2018.4.26f1 due to errors and broken shaders

Notes:
- The issue was initially reported to appear when the project is built with UWP Support and deployed on an Xbox One devkit, as with DirectX11, a higher feature level cannot be used on Xbox