Problems signing in to gitlab.com with 2FA and Google Authenticator

I cannot log in to gitlab.com with my Google Authenticator code. I got in with a recovery code and then disabled 2FA, assuming it was somehow corrupted.

Now I can’t re-enable 2FA, since all my Google Authenticator codes keep getting rejected during verification.

I’ve tried manually entering the secret to Google Authenticator, as well as using the barcode scan. I’ve tried entering the codes with and without the middle space. Please help!