Reproduction:

1. Open launcher
2. Sign in
3. Select "Latest Release 1.14.4"
4. Click Play
5. Launcher leaves the screen
6. Launcher returns indicating a crash
7. Clicking "view crash file" doesn't do anything

I enabled Minecraft Game Output to include debug and it shoes an Uncaught exception. Error report file is attached.

This started after many weeks of playing minecraft daily on this PC.

I am able to sign in and play successfully on other windows 10 computers.

Let me know what additional information you need.