I've had the same issue as others with the game sometimes not registering completed tasks that count towards mastery challenges but one of my Tier 2 Sherman Hill challenges is stuck at 2/3 despite the fact that it shows as being completed. Its definitely completed as I have activated the Herd of Bison reward and have seen it in game. I've completed many Timetable services on SMH since I completed it but it seems determined to remain at 2/3. Hardly a critical issue I know but I figured I would report it. I own the game on Epic Games. DW
