Factorio Forums

Previously, to set the recipe for ice crushing, you could send one of three signals to a crusher:

• Ice Crushing
• Ice
• Oxide Asteroid

As of 2.1.7, that list is now:

• Ice Crushing
• Ice

This is a bummer, because previously I could do recipe switching without using any combinators, like this ice / carbon platform:
(blueprint here: https://rocketcal.cc/d1de0f53514ae2df73 ... ea27d0.txt)

Honestly, it's a bit weird that it worked at all because there's not only one recipe for the crusher for oxide asteroid chunks, so the signal is not unambiguous.
Did you research asteroid reprocessing in the meantime?

This was an intentional change. Assembler's set recipe is supposed to select a recipe that produces given item, and given those recipes do not produce asteroid chunks (they produce less than they consume) the recipes are not selected.