Vanilla batteries for some reason recycle into Yuoki products, which is a nuisance particularly on fulgora where some amount of battery recycling is inevitable if you aren't producing infinite epic batteries.
There are a lot of other weird recycling mishaps local to yuokis that don't matter quite as much, but which might warrant looking at, like research recycling often into the yuoki research types when no output at all would likely be more ideal, or many machines which could be epic just dispense themselves since they produce more than one product when recycled. I should probably make a comprehensive list, but the battery recycling recipe is more pressing.