My understanding of productivity, when applied to recipes that include an input and output of the same item, is that productivity is applied on the net between the two. e.g. for Kovarex enrichment we get 1 (41 output minus the 40 input) extra Uranium-235 upon productivity completion and not 41 extra ...

Some food for the Mooncat:
Error while running event on_tick (ID 0)
__creative-mode__/scripts/item-providers-util.lua:871: attempt to index field 'last_working_static_container' (a nil value)
Happens when I rotate a Matter void to eat up items on a belt.

Thanks for the food. I somehow triggered ...