I use your mod with https://mods.factorio.com/mod/WhistleStopFactories . That mod add big factories with another recipes set. And it take 50 raw items to make 50 products. Your scrap mechanics work right with some recipes and wrong with others.

Iron works wrong:

Steel works well:

I don't know who should fix this incompatibility and make two topic about this. Here and on other mod.
https://mods.factorio.com/mod/WhistleStopFactories/discussion/5b9e29689bda35000943b72a

Hi DellAquila,

I was able to fix this on my side. The fact that your iron-plate recipe was specifying both result= AND results= was causing an issue.

result = "iron-plate",
results = { {
amount = 1,
name = "iron-plate",
probability = 0.94
}, {
amount = 1,
name = "iron-plate-scrap",
probability = 0.06
} },

Not sure if this double specification may cause issues with other recipe modifying mods (such as recycling mods), but may be worth still removing the result= portion so the results only get specified once.