SortingID of ProjTable isn't present in ExcelAddin. When updating records using Excel Addin with ProjTable, it will set the SortingId fields to Null
When a record that contains array fields is published from the Office Addins, the array field now gets marked to be skipped by the Service code that updates the record.
This requires changes both in X++ code and in framework code. Both changes need to be installed for this to take effect - if only one of the X++ or framework changes have been installed, the behavior will be unchanged.