Why is a negative amount shown on one of the payout notifications at all?
You have probably received an advance or instalment payment from GVL in the past. Such advances are usually granted on revenues from the "rights transfer" area and could previously only be offset against revenues from this area.
However, we are now able to offset the two revenue sources. The advantage: Advances are refunded more quickly, i.e. you receive remuneration from GVL more quickly.