requiring two factor authentication for enterprise not working

I recently made all of my managed users (including myself) enable two factor authentication on their accounts. Now, I'm trying to make it required in Enterprise settings. But when I try to save the change I am being asked to enter my authentication code. Which would be fine, but it just will not work! After I enter the code I am prompted to then enter one of my backup codes. Which, the first one didn't work. So, I tried the next and the next and they all weren't recognized.

Then, I deleted 2fa from my account with the plan to re-add it. It would not delete?! I'd get an email saying I removed it. but back in my account setting it was still there. I deleted it 3 times, saving changes as I go but it would not delete?

So, Instead, I deleted it and re-added it in one setting and generated new backup codes for myself, logged out and back in, and tried re-setting it up as a requirement for managed users again and it still will not recognize my authentication code? Still asking me to enter a backup code, which I did and was recognized, but then it sent me back to enter the authenticator code which leads back to the backup code, which takes me back to the authenticator code in a seemingly infinite loop.

What's going on? I did change my password yesterday on a different machine. but I updated it on this mac and am logged in successfully. So why is this not working?