While this bug isn't with this mod, it looks like this mod is creating it. I'm assuming the reason the reverse factory is having a problem is some dodgy item definitions which work ok in the game, but RF is having problems with it.

I get "Error while loading recipe prototype "rf-seeder-module-01" (recipe): Difficulty normal: Item ingredient can't have count of 0"

This only happened with the latest update, so I'm assuming they have changed something in the definition of an item ?

The latest factorio versions changed how it handles recipes that require 0 items, to avoid some issues with inconsistency with how it handled it. That mod is probably just trying to add reversals for everything without checking for that issue. They'll need to fix it on their end.

Issue was fixed on my end just a few days ago, in case anyone else was wondering.