I had 3 butterflies in my yard, and 2 of them went missing suddenly. I did not set them free. I hatched 2 more and when I got home today and signed into glitch one of those is missing as well. Is there a limit on the number of butterflies you can have? I had the 3 for several weeks before 2 disappeared. Or is there limit to how long they live? Anyone got any ideas? Thanks for any input!