@Parrafic

This usually happens because of connection issues. Sometimes more lag accumulates the longer you stay in the game. You were probably lagging behind with a few seconds. The round was probably over by the time you bid, but you were still seeing it as running, due to the delay you experienced.

You should contact the support too. Give them details of the 4 auctions (like date and time or amount of Tokens lost), and they will look into the issue for you.