OneDrive for Business and OneDrive Personal Issue

We have begun to migrate user contents from a file share to their individual OneDrive for Business account.  We have used GPO to handle settings per Microsoft guidance.  If a user also has a personal OneDrive account, we can install, connect and sync with no issue; however, if a user opens a doc in OneDrive personal they are prompted to sign in.  When they go and sign in they receive a feature has been disabled by admin alert.  Review GPO settings and do not see where we are blocking OneDrive personal and we are out of ideas.  Opened a support case with O365 and they said they could not help because it is a OneDrive personal issue.  Suggestions?