Minecraft java Edition (PC/Mac) typing A ,C and X not apear

Typing A,C and X in the chat and IP Address box doesn't work.

when clicking (A) the letter doesn't show up and the words written are highlighted.
But,
When (X and C) are clicked the letters just don't show up.

NOTE: If holding (Shift) the letters will show but, I am up able to type lower case letters.
Thanks.

In the picture it show what happen when I click A