Not sure if I fully understand which SFC data you checked. I wanted to clarify whether any records are in AR_SFC table. And if there are, then do they have parametric data still left in WIP? If so, it is a bug. Make sure you are using the last release of SAP ME.
As to the reports, are you sure that if "Store Data Collection Results in ODS" is turned on, then the report does not show the parametric data for SFCs sitting in WIP? Have you tested this? If so, then it might need discussion with SAP ME Management team to consider a change to the design.