2-factor is: 7.4.0
Board is: v3.5.1.

I also noticed that the 2fa isn't working for me too.
I generate the first code to test the application, that works, but when i want to log in later, it doesn't recognize the code, and i have to use a backup code

@RazielKanos I just tested v7.4.0 against latest develop and there are no issues with registering 2FA.

Just to be sure I also waited until the code rolled over to a new set and that also worked. Any errors on the backend?

Could it be your server clock is out of sync? If it is too far out, then the code it is expecting will not match your code.

Is it possible to have 2fa by email?

@darkpollo that I my view defeats in entire purpose of 2fa. If your email was hacked, they'd also have the two factor which is what your are looking to secure in the first place.

@phenomlab @darkpollo agreed. If there's a need for it it'd be a good separate plugin, same for a "magic link" style login plugin.