I had 5 butterflies in my yard. I placed them about a week ago. I raised them back up from babies (had AY'd them before the reset). I sang to them at least once per day. They all disappeared today. In my old yard (in Kajuu) I had the same 5 butterflies for the the ENTIRE time I lived there. Why did they die so quickly? Is this a bug or have their lifespans been nerfed?