StoneBlock 4 functional storage compacting drawers only seem to output the smallest item; can’t get it to transfer my iron clusters to the furnace. Anyone know a fix?

Pipez work as intended to bring materials to the drawers from the unearther and the compacting drawers work normally when grabbed manually. The tiny coal is outputting to the furnace. Bottom right pipe is set up normally and has been tested both with and without a filter for iron clusters. Both compacting drawers have push upgrades.