I am not really sure how to actually phrase this, so I will use a picture:
The circled portion is the top level assembly and drawing, yet the transition and check in show parts as reference above the top level assembly - the 230220.slddrw is on the same level as the assembly. Looking at the contains tab of 230220.slddrw it shows both 230220.sldprt & 235285.sldprt
Contains on those 2 parts only shows the drawings.
Where used on those 2 parts shows them being used in an assembly which is a sub assembly to 68677.
I do not understad why / how the reference for the 230220.slddrw ends up above the top level assembly??