Svapa Agro map, grass_windrow

[gentfarmer]

I have just built the animal feed (agrofeed) production facility and one of the resources is grass. The filltype for that pit is "Grass_windrow dryGrass_windrow" but it won't accept grass from a loading wagon. I assume mown grass collected by a loading wagon is filltype "grass_windrow".
So why won't the pit accept that grass?

[gentfarmer]

Problem solved. You have to reverse into the tip point.