Mushin Tower Floor 2???

[Lunakitty]

So I wanted to farm for the Silver Deva weapon chest in Mushin Tower floor 2. Instead of getting Silver Deva weapon chest I got Warrior weapon chest which states that Warrior weapon can be gotten from Junghado (floor 7). So can I now get my Silver Deva at all? Did these two drops mix? In the picture it is shown that I defeated Silver Deva and got from the box Locked Warrior Weapon. I am really confused is this a bug or meant to happen.

 

[Grimmrist]

It's totally random. I got the warrior weapon chest on 6f. But this morning I also got Silver Deva weapon chests on 2f.