Hello, I'm a little confused here, i'm experiencing the same problem as OP, after change/updating mods some recipes from this mod are gone. Now after looking at the changelog for V2.7.2 i saw the change has been made, however after a quick inspection of the file, it looks to me like it has in fact not been make in V2.7.2.
Greetings Failer
Edit: After a bit of fiddling (i'm not very knowledgeable with lua), i managed to get it working with:
if technologies["base-ore-processing"].researched then
force.recipes["iron-dust0"].enabled=true
force.recipes["copper-dust0"].enabled=true
instead of :
if technologies["base-ore-processing"] then
force.recipes["iron-dust0"].enabled=false
force.recipes["copper-dust0"].enabled=false