Please2 guys do not try to use 2FA as its not working and then you will not be able to log in back, you will need to open a ticket with support, i think they should unable that option as it will make people not to be able to log in
It works if you manually enter the code instead of using the barcode. If you saved the code (which you should always do for 2 FA) then you can use it on your authenticator app.