我很难让.children（）去工作

I have a bunch of items with the same class that when selected open a tooltip and dropdown menu. It works with a single item, but in order to get each one to work with it's specific child, I've used .children(). It seems to work in some places but not in others. I've narrowed down what's not working, but have zero idea as to why... please help.I have a bunch of items with the same class tha