Diagnosis
There was an error in the internal assignment of the 'Total' and'Fixed' cost fields for cost component &v1& in cost component structureV2.
Cost fields for the KEPH file are assigned internally when you definecost component in Customizing. The cost field for the total costs ofcost component &V1& points to the same cost field as for the fixedcosts. This means you may have problems displaying or costing withouterrors.

Procedure
Go into Customizing and assign the cost fields uniquely for costcomponent &v1& in cost component structure &v2&.