So as the title describes if you shift click say 10 red hearts (amout i tested with) into the baubles slots it changes the NBT data of one of the hearts see the screen shots below:

https://gyazo.com/96b1dd5ddd17577f280ff5cc059bde38
https://gyazo.com/9d6ffa38cc57485246c12004d93a033a

placing the heart canisters in manually do not cause this to happen

this is an issue as it make the NBT changed heart no longer stack with the other hearts
i am resolving this issue by allowing players to change the hearts into the non nbt version via a custom crafting reciepe

Fixed according to mod author via dummy recipes.