storybook nursery kit bassinet causes new baby to glitch

everytime I use the bassinet from the storybook nursery kit for my sim to have a baby in the bassinet disappears and when i click in the baby to find it at the bottom where all my sims are listed its nowhere. i have to save and exit into manage worlds and join the household again but the baby always in a different bassinet usually a replacement for the default one. once i have my sim have twins in those bassinets and the second baby just disappeared it wasn´t even in the family tree, just gone. could this be caused by an invisible cribs mod, or is it ea´s faut, because it only happens with that specific bassinet.