2FA issues during Bluesky login

[TKFTGuillotine]

My Bluesky account had 2FA enabled when I attempted to follow the migration instructions. Upon reaching the "Login to Bluesky" screen and entering my username/password, I was met as expected with a prompt to enter my 2FA code. Oddly, above this page was an error message reading "Oh no! Please check your email for your login code and enter it below," which is both redundant and not really an error.

When I attempted to enter my 2FA code, I was met with another error message reading "Oh no! Invalid handle" and could not proceed. I verified a few times that the information was correct and tried a few different browsers before disabling 2FA on my account to bypass the issue.

No clue if it's relevant, but I am using a handle at a custom domain.