A second update went live tonight, with no download needed.
Mail is fixed. Before, only the first mail in your box could be read properly. Now you can open, claim and delete every mail. The Sent tab shows the right rows too. Nothing was lost: mails you could not open are still in your box. If you won an invasion reward by mail, it is there as well.
Invasion rewards are easier to win. You now need to be in the ring for at least a quarter of the time, not half. You still have to fight to get a reward.
Savage Baby no longer drops several items on every kill. Those drop rates were wrong in our data.
Timed potions and foods, such as Swift Potion, now renew when you drink a second one instead of stacking.
Bleeds and stuns now end when you die, so they no longer hit you again after you revive.
A party that shrinks to one player can still loot its own kills.
When an invasion ends, you no longer stay stuck in battle with no HP or SP coming back.
One account can no longer be in the world twice, and a character that is playing can no longer be deleted from a second screen.
We also made the server steadier. The server now saves everyone before a normal shutdown. Monsters can no longer get stuck standing at 0 HP when something goes wrong as they die. We fixed a rare fault that could make monsters drop their whole loot table, and some rare freezes.