To reproduce:

1. Download attached “baseplate_with_raksha_source.zip" project and open in Unity
2. Open Preferences window
3. Select Cache Server tab
4. Set Cache Server Mode to Local
5. In Toolbar select CMS > Full Refresh
6. Observe that Unity Editor crashes within seconds

Notes:
- This issue seems to appear only on macOS
- UnityAssetsEditor.dll targets to .NET 3.5, so maybe that's what causes a Crash
- If Cache Server is Disabled, then everything will work as Expected - No Crash occurs
- Could not check on Unity 2018.3, 2018.4, 2019.2 and 2019.3 because project becomes Corrupted - it throws a lot of Errors on opening because of the Scripts

Reproduced on Unity 2019.1.0f2 and 2019.1.5f1