u/KaiserRoll823

I've been trying to do Fungus on Mega Brutal and was just about to win with the cure set to complete in over 200 days and the world population set to die out in around a week. Suddenly though, the cure just randomly jumped from 97% to 100% out of absolutely nowhere, no notification like "genome sequenced" or "increase understanding of 'symptom'", and neither of these happened throughout the game either, just an unfair instant loss. Is this a known bug?