Platform, device version and operating system
Screenshot or image
What you were expecting to happen, and what actually happened
Attempting to use the Spell Effect filter to find all troops who can devour. It only brought up the following 7 troops (if I include unowned, Doomclaw also appears). Troops that I own that are missing: Bulette, Chupacabra, Dragon Cruncher, Elf-Eater, Gob-Chomper, Gorbil, Monster Muncher, Mosasaurus, Wulfgarok
How often does this happen? When did it begin happening?
Always I guess? Not sure when it started.
Steps to make it happen again
Go to Troops, selected the Spell Effect sort for Devour.