While trying to find out exactly how much it costs to craft the most basic OpenComputers computer, I ran into a strange issue - the Crafting Calculator was claiming that regular crafting ingredients were catalysts, even when all the recipes involved included no catalyst but a regular crafting bench.

I posted an album of the relevant screenshots here. You can see that I only have three recipes loaded into the calculator, and each recipe only has a crafting bench in the catalyst slot, but transistors are appearing as a catalyst of the final craft.

I'm using a small, custom 1.10.2 modpack I just threw together; I am using

Mods:
  Architect-MC1.10.2-1.0.5.24
  AutoRegLib-1.0-2
  Baubles-1.10.2-1.3.9
  Better With Mods-0.14.22-1.10.2
  BloodMagic-1.10.2-2.1.9-78
  Botania r1.9-341
  Computronics-1.10.2-1.6.3
  foamfix-0.6.2-anarchy
  Guide-API-1.10.2-2.0.3-46
  ImmersiveEngineering-0.10-55
  jei_1.10.2-3.14.7.419
  JustEnoughCalculation-1.10.2-2.6.4
  OpenComputers-MC1.10.2-1.6.2.7
  Quark-r1.1-70
  Railcraft_1.10.2-10.1.1
  redstonepaste-mc1.9.4-1.7.4

Which I have not configured at all. The logs do not appear to contain anything that could be relevant to this, either. I'm going to try re-creating these recipes with random vanilla items in the same configuration to see if it's something about the pattern in which the recipes include items from each other.

Thanks for report!

Have to admit the catalyst is sometimes weird since I want to make the result dynamic but I haven't find a very reliable algorithm. Although I heven't tried, I think I can reproduce it easily.

It might take some time before it get fixed since my computer is down and I'm stressed on final exams. Will look into it once I got time.

Closing this issue since it's too far ago. This problem will not happen in 1.12.