Inventory Forecasting Slow Down

We typically do large shipments to Amazon FBA the first of each month, based roughly on their projected needs for each SKU. Right now, several of our SKUs are under 40 days of inventory, yet Amazon is not forecasting a need for more. Any ideas why? Making space for Q4? Recalculating needs for Q4?

My thinking is to send in 180 days of inventory ahead of the 4th quarter to be safe. But I’m so puzzled why Amazon would not be forecasting at all. Thanks!