I seem to be unable to complete the "Ways to the gold" quest. It asks me to acquire 600 coins. I did have 614, yet the quest tracker showed 310/600. I attached screenshots showing that I had 639 but the tracker showed 355/600, and then I spent 25, dropping the tracker count to 310/600, while the warehouse contained 614.
I borrowed 300 from another player. I suspect that's where the bug is; the game hasn't included the coins I received in trade. I couldn't hold on to the coins either, the other player needed them back! So now I have to wait for the bug to be fixed, or until I collect 600 coins without trading...