New answers tagged access-denied
There is a hidden list in your site collection at /_catalogs/users. See this explanation. If the user has yet never been assigned to a group, there is no entry for her / him in the list, that means there is no SharePoint user for the account. If the user is assigned first time to any group, the SharePoint user should be created first. If the user, who ...
Go to another view of the list and try to delete the item from there. It could be an issue with the view
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