Currently when using MFA and a app like Authenticator you can not fallback to SMS. It would be nice to have the option to fall back to SMS on the MFA screen versus disabling MFA with text then reenabling it.
We’ve made this change and announced it as part of an update to 2FA today. Changes include not disabling 2FA if you use your preferred backup method. You can check out the changes in the Security section of Settings or read more about it here:
Thank you for the feedback!