2FA Providing "Incorrect Code" response even though it is definitely correct and not expired.

I am trying to Add a Public Key to an app which directs me to the 2FA page. After entering the code I am being told it is incorrect. I have tried multiple browsers and devices as well as 2FA methods and even trying to change my computer's clock to being in different time zones and nothing seems to work. 

Looks like there are multiple threads discussing this but no resolution except for tickets being opened. Has anyone figured out how to solve this?

Thanks a lot