Key legal question
Whether the recovery claim was time-barred under the one-year limitation period
Extracted holding
The recovery was not time-barred because the decisive trigger was the later point when the fund could have noticed the error with due care, and the decision was issued within one year.
Extracted reasoning
For recovery claims caused by a fund error, the relative limitation period starts only when the administration, exercising due care, should have recognized the reimbursement basis; a second trigger, not the original mistake, is required.