Hi, a while ago I was trying to slowly get the matchmaking achievements for MCC, I was working mainly on the grenade kill and the killjoy medal ones. The killjoy achievement said it was around 70-80% done (I don’t remember exactly) and the grenade was around 60-70%. One day I loaded up MCC and my progress towards both achievements dropped to around 1-10 percent and I have no idea why. This happened a while ago and have gotten some progress towards the achievements since but it hasn’t fixed it.