Steps to reproduce:

Open following codepen : https://codepen.io/sandeepnmenon/pen/NWKOgYo
Tab till the check button in the header of the table.
Check/Uncheck using space button

Actual behavior:

NVDA not reading checked/unchecked

Expected behavior:

NVDA should read checked/unchecked

System configuration

NVDA version: 2019.2.1

Windows version: Windows 10

Name and version of other software in use when reproducing the issue:

React: 16.8.6
Office fabric: 7.60.0

Does the issue still occur after restarting your PC?: Yes