Hey Therenas,
First of all, thanks for making this mod! I don't think I would have ever attempted any of the big overhaul mods if it wasn't for it :)
I wanted to report an issue with FP that only arose with the most recent update for IR (2.0.5). I believe that IR update added fluid temperatures for molten materials such as glass, copper, iron, when they're created in a building called an "arc furnace". The recipes that consume those molten materials don't appear to specify any temperature values in their recipes.
The issue is that if you try to make a subfactory in FP that makes, say "glass ingots", and you select the recipe that uses molten glass, FP is unable to find any recipes that make molten glass (presumably with no temperature constraints), despite such recipes existing in Recipe Book and Prototype explorer.
My suggestion—if a recipe doesn't specify the temperature of one of its fluid ingredients, FP should be able to find and use recipes that make that fluid at any temperature.
Thanks in advance for considering this :)