That was hard to summarize in the title. Basically, I have a processing pattern for 1x iron ore -> 2x iron dust in the SAG Mill. If I request 4 dusts, it will run the recipe 4 times and give me 8 dusts. I would expect that it should run it twice to give the requested 4 dusts. So it's running the recipe N times, rather than figuring out how many times to run it for the requested output.

Interestingly, if I request 10 iron ingots (through another processing pattern in the alloy smelter), it will not end up with excess dusts and will run the dust recipe 5 times, get 10 dusts, smelt them, and all is well. So it seems to handle it correctly for this sort of crafting chain. But the number entered for the manually started crafting request does not take into account when the recipe will make more than one of the item.