Compacting Drawers cannot detect Matter Overdrive mod's (https://github.com/simeonradivoev/MatterOverdrive) Tritanium ingot's blocks, the CD places the ingot to the topmost slot (where normally block goes). Maybe it's because this ingot does not have nuggets, so basically it could be handled like Redstone or Lapis.

SD: 1.5.12
MO: 0.4.0-RC2

Modpack: FTB Horizons Daybreaker (FTBHorizonsII) 1.1.0 without Redstonic mod.