How can I make Widget show up under User Created Widgets?

This is the widget I want to put in another widget. Its full name is W_FieldCreatorMenu and I can see it has a parent class of User Widget:

322623-fieldcreatormenu-widget.jpg

But then in the other widget it is not listed as an option (W_FieldCreator is my work around which is W_FieldCreatorMenu but re-made from scratch):

322624-usercreatedwidgets.jpg

I literally just copied everything from W_FieldCreatorMenu to a new widget and then copied the whole event graph over as well and it worked, the new one shows up under User Created. I’m not sure what would be making some of my widgets not show up, but it’s more than just this one. Ill update here if I figure it out.