My butterflies won't grow on level 1271

rnminty

I understand that this is a very hard level but several times I have cleared large areas of blocks and my butterflies don't grow. It looks like a bone shows up briefly. This is very frustrating and I don't understand why they won't grow. 

Lady_Choo

Hi rnminty thank you for using King care. 

I have a help link here which will hopefully show you how to complete the level

https://sagalevelhelp.com/pet-rescue/level-1271