Captcha (additional code to type in after login)

Ive been very careful with typing in this 4-character code every time the system prompted me to. But the thing is, like probably most of bilingual users, I use several languages keyboards. So once, when my login and password were auto filled in I had to type those 4 characters. And only after I hit Enter key I realized that I used non English keyboard. And the system let me through. Since then I experiment. I type random letters or digits, not the ones I SHOULD type, you know. And the system lets me through again and again. Ive been wondering. Other websites are very strict with captchas, when you make mistakes you have to re-type the codes until you get it right. So my point is there is a flaw in this captcha step, and it needs to be either corrected, or just removed from the authorization process.
What do you think?

langstep

I don’t bother typing anything into the captcha box, just hit enter and lets you in.  Not sure why it is there.