Windows 10 Shuts Down after playing game for less than a minute (19w41A)

Windows 10 Shuts Down after playing game for less than a minute

Snapshot build: 19w41A

Steps to reproduce:

1. Start MC and launch 19w41A (Latest snapshot)
2. Create a new Creative world using default map generation
3. Start playing game
4. After about 30 seconds or so the Windows 'Shutting down' screen appears and Windows shuts down.

100% reproducible on my PC.