I can't put yield modules in a crusher making gravel from crushed iron; it gives me the vanilla error message saying it can only be used on intermediate products.

Which is weird since gravel is an intermediate product. And this is literally the only recipe I've found I can't use yield modules* for -- e.g. the game lets me put yield modules when crafting modules and crafting machines.

What is the intended behavior?

• Edit: I did a little bit more checking and found fuel canisters are also banned, so it's not the [i]only[/i] exception I've found for yield modules.