Trying to set up an auto loading system for my ships torpedo launchers using RimFactory Item Pullers.
The pullers correctly pull the torps from storage, move them where they need to be, but don't actually drop the torp into the launcher.
The yellow output of the item puller is on the torp launcher building, but it won't spit out the torps into the launcher.

I've emptied the launcher to ensure it's not full.
I've ensured the pullers white square is on the storage source, and the yellow is on the desired destination.
The puller is powered, and correctly pulls the items, but won't place them.

What am I doing wrong here?