I’ve been having an issue with a web app that I use where certain keyboard shortcuts involving Ctrl+Shift+0 through 9 are not working. Up until recently, all of these keyboard shortcuts worked with the exception of Ctrl+Shift+0. However, now Ctrl+Shift+1, +3, and +8 have also stopped functioning. This is happening across multiple browsers and it doesn’t seem to be an issue with the app itself as checking key presses with keycode.info shows that these specific number keys are not registered when Ctrl+Shift are held down.

I’ve tried using AutoHotkey to map this key sequence to my function keys, but the same behavior occurs.

It seems like Windows might be overriding this key sequence, but I’m not sure how to troubleshoot this issue.

Askify Moderator Edited question April 25, 2023