How to reproduce:
1. Download the "rolltheball.zip" project from case 1177436
2. If needed, upgrade the project to newest major version (keep the Android active platform)
3. Open the project on newer Unity version (Make sure there is no Android support installed)
4. Click "Swap to default"
5. Wait

Actual result: Unity crashes.

Crash reproduces on: 2020.1.0a4, 2019.3.0b2, 2019.3.0a11, 2019.3.0a1.
Regression introduced in: 2019.3.0a1.
Not reproducible on: 2019.2.4f1, 2019.1.14f1, 2018.4.8f1, 2017.4.32f1.

Notes:
- The crash only happens when upgrading to the same major version and changing the active platform.

- The crash doesn't happen if:
- changing the active platform and upgrading project to other major version.
- only changing the active platform and not upgrading the project.
- changing the active platform via Build Settings.
- The crash doesn't happen anymore after crashing once. (The platform is already changed)