Subject: bug#53961: 26.3; extra keystrokes on startup

From: Eli Zaretskii <[email-masked]>
Date: Sat, 12 Feb 2022 21:05:55 +0200

> From: Mike Blake <[email-masked]>
> Date: Sat, 12 Feb 2022 07:36:28 -0500
> 
> After starting from emacs -Q:
> 
> "C-c C-c is undefined" message repeats in the minibuffer until I break
> it with a keystroke

I'm guessing this is something specific to your system.

Also, Emacs 26.3 is very old.  Can you try a newer release?

Thanks.