I am having problems with Review. When people receive my invitations, they are unable to access the link. This is a new problem since I updated to 16.0 and starting this week. The screen shot shows what my invitees see.
are you sure that the one who tries to access the review is part of the members list you've done with Invite Only?
Pure speculation from my side: If yes, perhaps your invitee is locked into a browser or CC Desktop App with a different* Adobe ID so the invitee cannot be identified? *Whatever that means. I only know that Review is able to detect Adobe IDs.