I have noticed this twice. In campaign there is a little chest icon next to the Multiplayer button that is either gold/brown or purple, that is showing you what your next victory should win you. After the latest build it has stopped changing and is now always Gold. What I have done to see this bug: Start in MP>Wins 1 game> Goes to Campaign> gold chest is there instead of brown. *EDIT* OK, thanks Jarmo, didn't know. The strange thing is that this icon has worked for me since... forever, but I have only noticed it not working in the past two weeks.
This is a known, low-priority bug. They haven't gotten around to fixing it yet. https://forums.cardhunter.com/threads/mp-chest-icon.1469/
