Hi all,
I want to inform you that we are definitely looking into this outlook task issue. It is currently being investigated.
For now the status is , since the issue is in the December PU the customer will probably want to revert back to November PU version 15.0.4771.1004. *** Note *** roll back office version is only a workaround. For MSI the customer will need to remove the December PU, support.microsoft.com/.../3114349.
For Outlook 2016 MSI customers can remove the December PU support.microsoft.com/.../3114387. C2R customers can revert back to November PU version.
I apologize for any inconvenience caused by this issue, and do appreciate your patience and understanding, and we will update you as soon as we have a possible resolution for this issue.
Best Regards,
Neo