Other iCloud User Blocking Mac App Store Downloads
I have 10.13.6. My iCloud email is ****@ levinriegner.com. When I try to download a Keynote update, I'm presented with a previous iCloud user and the email is un-editable. In the App store menu I'm signed in as ****@ levinriegner.com. I'm also signed into iCloud via System Preferences as ryan@levinriegner.com. From what I've explored, I see no reference to this past iCloud user to remove.
[Image Edited by Moderator to Remove Personal Information]
iMac 27", macOS 10.12