Unable to type b capital (shift+b)

How can this issue be reproduced?
Open any web mail client in brave browser. In my case: protonmail
Try to type capital b (shift +b). Nothing happens. In the address bar of brave browser it works Ok.
In Firefox browser, it works Ok. In Libre Office, it works Ok.
I turned off all the extensions: did not work.
Typing b letter (no shift+b) works Ok.
This happens since a few weeks ago.
Expected result:
b letter appears in capital.
Brave Version( check About Brave):
v1.66.115 (May 24, 2024)
Upgraded Chromium to 125.0.6422.112
Additional Information:
Kernel: 5.15.0-107-generic x86_64 bits: 64 compiler: gcc v: 11.4.0 Desktop: Cinnamon 6.0.4
tk: GTK 3.24.33 wm: muffin dm: LightDM Distro: Linux Mint 21.3 Virginia base: Ubuntu 22.04 jammy