If you have any custom views/ Stored procedure in your Enterprise database and you are re-initializing the store after that, make sure below are followed
-- Confirm the Enterprise has been upgraded successfully to 6.6
-- Before taking backup for store re-initialization, take backup of the custom stored procedures and views
-- Once done, drop them from the production database
-- Once done, take backup of store with desired setting (for store re-initialization)
-- Once backup is completed, use this to re-initialize the store
-- After store initialization, verify the schema (view/procedures) against Enterprise database
-- Once all set, then reload/recreate the existing custom views and stored procedures at HO* and store databases
* You can restore the custom views/Stored procedure at HO just after completing the back up as well ( if required)