Diagnosis
In C/I Customizing under Equity Method Posting, you have not specifiedthe item for negative investments for scope of reported data &V1&.
This item is needed in theequity method for theseparate disclosure of the negative investment during adjustments. Thiscan be a balance sheet item or a statistical balance item.
Regardless of the item type, consolidation of investments requires thenegative investment item for statistical purposes. If multiple scopes ofreported data are defined, then you need to assign a different negativeinvestment item to each scope - that is, the assignment must bereversible.

Procedure
Add the missing assignments in Customizing for consolidation ofinvestments.