A specific no longer have permission to multiple SharePoint sites, after being DirSync'ed.
The user had created various SharePoint site collections, with a cloud-only identity, but then after being DirSynced the user can no longer access these SharePoint sites, even though he is listed as a Site Col. Administrator. Furthermore, the user is listed in various SharePoint groups, granting verious privileges.
We had tried deleting the user from these groups, only leaving Site Col. administrator privileges, but to no avail.
We have checked and confirmed that the user has a SharePoint Online license, via the E3-plan.
Also, the user is unable to validate his Office-pack with his username, therefore it seems there has been a corruption between the old cloud identity and the on-prem identity.
Would it help to delete the SharePoint Online User Profile, and how long would it take for SharePoint Online to clean-up before being able to re-provision the user with a SharePoint Online User Profile?