I restart my app over and over again and the Duos Berserker challenge would not add any completed Duos matches to the counter. I switched an old challenge from the last map with that one and it will not complete it. Also, daily challenges from the last map should of auto-switched to new challenges. Had to waste 2 chances to switch out my Daily Challenges because those old challenges were still there.
Related to Daily Challenges there is another bug. The challenge for "getting in the top 10 2 times" is also not working. Also, the daily challenges for the previous map are popping up and when you go to exchange a challenge with another you sometimes get one for the previous map. Video:
Experience Survivor does not work at all. Close your app or trying it another day doesn't do anything.