While infusing gear during a Sundial, I noticed that I hadn't consumed my Martyr's Retribution when I infused my Symmetry, so I checked my other infuses and noticed I had a Line in the Sand available for infusion that only had the Precision Frame perk. When I tried to infuse it in to my other fusion rifle, it didn't consume my Line in the Sand in my inventory.
-
I had the same thing happen with Breachlight