I've tried the refresh option but to no avail. Any ideas?
This is due to an expired certificate used to sign several built-in Universal Windows Platform (UWP) applications on Windows 11 version 21H2.
Starting on November 1, 2021, some users might be unable to open or use certain built-in Windows apps or parts of some built-in apps. This is caused by an issue with a Microsoft digital certificate, which expired October 31, 2021.
The following applications might be affected:
- Snipping Tool
- Accounts page and landing page in the Settings app (S mode only)
- Touch Keyboard, Voice Typing, and Emoji Panel
- Input Method Editor user interface (IME UI)
- Getting started and Tips
The solution to this problem is to install the out of band update KB5008295 which was released on November 5th.
- Touch Keyboard, Voice Typing, and Emoji Panel
- Input Method Editor user interface (IME UI)
- Getting started and Tips
- Snipping Tool
- Accounts page and landing page in the Settings app (S mode only)
Source: Snipping Tool and some built-in applications might not open or work as expected