I got an unusual issue with SharePoint 2010. We use SharePoint as an external Client portal using FBA login authentication. We have close to 2000 users on this portal. 28 of these users show up with i:0#.f|fbamembershipprovider| in its
username and these 28 accounts cant login. I can't seem to find where they are in the database or how to remove or fix these logins. Anyone have a suggestion?
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