A small number of iOS 10 beta 2 users who have two-factor authentication switched on report that they are being locked out of their Apple accounts, unable to perform a password reset. Apple Support is telling them that because 2FA is in use, Apple is currently unable to help.

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One user was told by Apple that the issue may be with a server used by the beta software, or it could be caused by a bug in the beta itself.

Some in the Reddit thread are suggesting that it may be wise for other beta users to switch off two-factor authentication until the issue has been resolved. Instructions for doing this can be found right at the bottom of this Apple support document.