bouteille stephan

I had this problem but since I switched the game into peacefull it seems to work properly.
This may be due to the fact that the monsters spawn rules are completely broken.

EDIT: Switching in peacefull don't correct the issue, it just takes longer to happen.

Same issue for me on android version.
I try to unlock this achievement since 0.15.3 version with no succes.
I unlocked it on my win10 edition in a previous version but i don't remeber witch one.