Key legal question
How much of the appellant's vested benefits had to be divided after divorce?
Extracted holding
The existing record did not permit a reliable calculation of the vested benefits; further clarification was required.
Extracted reasoning
The cantonal court relied on inconsistent account balances and failed to clarify the correct opening balance at marriage, including the possible application of the EDI table under Art. 22a FZG and the required indexation to the divorce date.