Hi,
I faced the same issue , on analysing I found that Article setting for "if the object with same name already exists" was to "Truncate table and reload data" . I modified it to "Delete the object and re-create" then it worked fine.
Solution :
Modified Article properties for the table
Property : Action if name in use
Earlier Value : Truncate All data in the existing object
Fixed value : Drop Existing object and create a new one
Regards,
Avi