Factorio Forums

What did you do?
Sent a "Fish" signal (e.g. using a constant combinator) to a biochamber configured to use "Set Recipe".

What happened?
The biochamber set the recipe to "Fish Breeding".

What did you expect to happen instead?
Nothing! The recipe should only be set to "Fish Breeding" when the "Fish Breeding" signal is received, and not from just the "Fish" signal.

Does it happen always, once, or sometimes?
Always.

When items do not have multiple recipe, their only recipe is choosen when you sent this item as signal to a machine that has "set recipe" active. That's the case for all the items that do not have multiple recipe it look like from the few i tested.

Not a bug. Selecting recipe based on match on item product is intended feature.

Alright. I guess I'll submit a request to be able to turn the "feature" off then, as it makes wiring designs much much much more complicated.