This game would be great if actual visibility was correct or a viable stat. Also, different ways of transmitting say they increase infectability, but do not increase the stat at all.
Last challenge bug happened with Enforced Silence, but it went away after 6 rounds.
My deck was just 3 of each: Hive mind, Pincer Bot, Hrathian Bot, SS sentry; and 2 frailties for fun. Never lost a challenge.